64004626648864 has 48 divisors (see below), whose sum is σ = 137474031987936. Its totient is φ = 29090991001600.

The previous prime is 64004626648861. The next prime is 64004626648913. The reversal of 64004626648864 is 46884662640046.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 64004626648796 and 64004626648805.

It is not an unprimeable number, because it can be changed into a prime (64004626648861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1236097 + ... + 11381440.

It is an arithmetic number, because the mean of its divisors is an integer number (2864042333082).

Almost surely, 2^{64004626648864} is an apocalyptic number.

It is an amenable number.

64004626648864 is an abundant number, since it is smaller than the sum of its proper divisors (73469405339072).

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

64004626648864 is a wasteful number, since it uses less digits than its factorization.

64004626648864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12631969 (or 12631961 counting only the distinct ones).

The product of its (nonzero) digits is 254803968, while the sum is 64.

The spelling of 64004626648864 in words is "sixty-four trillion, four billion, six hundred twenty-six million, six hundred forty-eight thousand, eight hundred sixty-four".