64979151440904 has 80 divisors (see below), whose sum is σ = 187872815454720. Its totient is φ = 20961016587360.

The previous prime is 64979151440891. The next prime is 64979151440971. The reversal of 64979151440904 is 40904415197946.

64979151440904 is a `hidden beast` number, since 6 + 4 + 9 + 79 + 1 + 514 + 40 + 9 + 0 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1617342304 + ... + 1617382479.

It is an arithmetic number, because the mean of its divisors is an integer number (2348410193184).

Almost surely, 2^{64979151440904} is an apocalyptic number.

It is an amenable number.

64979151440904 is an abundant number, since it is smaller than the sum of its proper divisors (122893664013816).

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

64979151440904 is a wasteful number, since it uses less digits than its factorization.

64979151440904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3234724832 (or 3234724819 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 63.

The spelling of 64979151440904 in words is "sixty-four trillion, nine hundred seventy-nine billion, one hundred fifty-one million, four hundred forty thousand, nine hundred four".