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64896965470629 = 338772740697051
BaseRepresentation
bin11101100000110000000001…
…00100101110100110100101
322111210002102002212020102000
432300120000210232212211
532001232441130030004
6350005130535235513
716445436205564635
oct1660300044564645
9274702362766360
1064896965470629
1119750715169756
127341572518b99
132a299b054bcc6
14120505c0286c5
157781bb974c39
hex3b060092e9a5

64896965470629 has 16 divisors (see below), whose sum is σ = 96253280466240. Its totient is φ = 43215311084400.

The previous prime is 64896965470627. The next prime is 64896965470699. The reversal of 64896965470629 is 92607456969846.

64896965470629 is a `hidden beast` number, since 6 + 4 + 8 + 9 + 6 + 9 + 6 + 547 + 0 + 62 + 9 = 666.

It is not a de Polignac number, because 64896965470629 - 21 = 64896965470627 is a prime.

It is a super-2 number, since 2×648969654706292 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64896965470627) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1370324847 + ... + 1370372204.

It is an arithmetic number, because the mean of its divisors is an integer number (6015830029140).

Almost surely, 264896965470629 is an apocalyptic number.

It is an amenable number.

64896965470629 is a deficient number, since it is larger than the sum of its proper divisors (31356314995611).

64896965470629 is a wasteful number, since it uses less digits than its factorization.

64896965470629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740697937 (or 2740697931 counting only the distinct ones).

The product of its (nonzero) digits is 8465264640, while the sum is 81.

The spelling of 64896965470629 in words is "sixty-four trillion, eight hundred ninety-six billion, nine hundred sixty-five million, four hundred seventy thousand, six hundred twenty-nine".

Divisors: 1 3 9 27 877 2631 7893 23679 2740697051 8222091153 24666273459 73998820377 2403591313727 7210773941181 21632321823543 64896965470629