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12799229398560 = 2535511223237139
BaseRepresentation
bin1011101001000000110110…
…0001011000111000100000
31200022121001022012020100000
42322100031201120320200
53134200310211223220
643115515041500000
72460466556553063
oct272201541307040
950277038166300
1012799229398560
114095139358300
1215286b0041600
1371ac67b0a677
143236b386c8da
15172e0d746390
hexba40d858e20

12799229398560 has 2592 divisors, whose sum is σ = 53837091322560. Its totient is φ = 2866947747840.

The previous prime is 12799229398547. The next prime is 12799229398619. The reversal of 12799229398560 is 6589392299721.

12799229398560 is a `hidden beast` number, since 1 + 2 + 7 + 9 + 9 + 2 + 29 + 39 + 8 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (2592).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 92080786971 + ... + 92080787109.

Almost surely, 212799229398560 is an apocalyptic number.

12799229398560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12799229398560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26918545661280).

12799229398560 is an abundant number, since it is smaller than the sum of its proper divisors (41037861924000).

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

12799229398560 is a wasteful number, since it uses less digits than its factorization.

12799229398560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 264539520, while the sum is 72.

The spelling of 12799229398560 in words is "twelve trillion, seven hundred ninety-nine billion, two hundred twenty-nine million, three hundred ninety-eight thousand, five hundred sixty".