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64368714447 = 3529611371093
BaseRepresentation
bin111011111100101011…
…001010001011001111
320011010222002111100000
4323330223022023033
52023311342330242
645323124535343
74436055021342
oct737453121317
9204128074300
1064368714447
1125331508974
1210584b51553
1360ba88801b
143188b86459
151a1b05ba4c
hexefcaca2cf

64368714447 has 96 divisors (see below), whose sum is σ = 102214082880. Its totient is φ = 40419025920.

The previous prime is 64368714413. The next prime is 64368714461. The reversal of 64368714447 is 74441786346.

It is not a de Polignac number, because 64368714447 - 214 = 64368698063 is a prime.

Its product of digits (10838016) is a multiple of the sum of its prime divisors (1323).

It is a junction number, because it is equal to n+sod(n) for n = 64368714393 and 64368714402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64368714467) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 58891233 + ... + 58892325.

It is an arithmetic number, because the mean of its divisors is an integer number (1064730030).

Almost surely, 264368714447 is an apocalyptic number.

64368714447 is a deficient number, since it is larger than the sum of its proper divisors (37845368433).

64368714447 is a wasteful number, since it uses less digits than its factorization.

64368714447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335 (or 1323 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 54.

The spelling of 64368714447 in words is "sixty-four billion, three hundred sixty-eight million, seven hundred fourteen thousand, four hundred forty-seven".

Divisors: 1 3 9 27 29 61 81 87 137 183 243 261 411 549 783 1093 1233 1647 1769 2349 3279 3699 3973 4941 5307 7047 8357 9837 11097 11919 14823 15921 25071 29511 31697 33291 35757 47763 66673 75213 88533 95091 107271 143289 149741 200019 225639 242353 265599 285273 321813 429867 449223 600057 676917 727059 855819 965439 1347669 1800171 1933517 2030751 2181177 2567457 4043007 4342489 5400513 5800551 6543531 7702371 9134201 12129021 13027467 16201539 17401653 19630593 27402603 36387063 39082401 52204959 58891779 82207809 117247203 156614877 246623427 264891829 351741609 469844631 739870281 794675487 1055224827 2219610843 2384026461 7152079383 21456238149 64368714447