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12669658470 = 2335719352817
BaseRepresentation
bin10111100110010101…
…11010010101100110
31012200222012100002000
423303022322111212
5201421413032340
65453110430130
7625652214540
oct136312722546
935628170060
1012669658470
115411767a27
122557062346
13126bb0c641
14882938690
154e244cd30
hex2f32ba566

12669658470 has 128 divisors (see below), whose sum is σ = 40644633600. Its totient is φ = 2743497216.

The previous prime is 12669658411. The next prime is 12669658487. The reversal of 12669658470 is 7485696621.

12669658470 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 140499 + ... + 212318.

It is an arithmetic number, because the mean of its divisors is an integer number (317536200).

Almost surely, 212669658470 is an apocalyptic number.

12669658470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12669658470 is an abundant number, since it is smaller than the sum of its proper divisors (27974975130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12669658470 is a wasteful number, since it uses less digits than its factorization.

12669658470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352859 (or 352853 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 12669658470 in words is "twelve billion, six hundred sixty-nine million, six hundred fifty-eight thousand, four hundred seventy".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 19 21 27 30 35 38 42 45 54 57 63 70 90 95 105 114 126 133 135 171 189 190 210 266 270 285 315 342 378 399 513 570 630 665 798 855 945 1026 1197 1330 1710 1890 1995 2394 2565 3591 3990 5130 5985 7182 11970 17955 35910 352817 705634 1058451 1764085 2116902 2469719 3175353 3528170 4939438 5292255 6350706 6703523 7409157 9526059 10584510 12348595 13407046 14818314 15876765 19052118 20110569 22227471 24697190 31753530 33517615 37045785 40221138 44454942 46924661 47630295 60331707 66682413 67035230 74091570 93849322 95260590 100552845 111137355 120663414 133364826 140773983 180995121 201105690 222274710 234623305 281547966 301658535 333412065 361990242 422321949 469246610 603317070 666824130 703869915 844643898 904975605 1266965847 1407739830 1809951210 2111609745 2533931694 4223219490 6334829235 12669658470