64707699068928 has 78 divisors (see below), whose sum is σ = 186910533959474. Its totient is φ = 21569233010688.

The previous prime is 64707699068869. The next prime is 64707699068951. The reversal of 64707699068928 is 82986099670746.

64707699068928 is a `hidden beast` number, since 6 + 470 + 7 + 69 + 9 + 0 + 6 + 89 + 2 + 8 = 666.

64707699068928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 54851916939264 + 9855782129664 = 7406208^2 + 3139392^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 877617475 + ... + 877691202.

Almost surely, 2^{64707699068928} is an apocalyptic number.

It is an amenable number.

64707699068928 is an abundant number, since it is smaller than the sum of its proper divisors (122202834890546).

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

64707699068928 is a wasteful number, since it uses less digits than its factorization.

64707699068928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755308707 (or 1755308682 counting only the distinct ones).

The product of its (nonzero) digits is 3950456832, while the sum is 81.

The spelling of 64707699068928 in words is "sixty-four trillion, seven hundred seven billion, six hundred ninety-nine million, sixty-eight thousand, nine hundred twenty-eight".