52640674392864 has 48 divisors (see below), whose sum is σ = 138189635327520. Its totient is φ = 17545892728320.

The previous prime is 52640674392857. The next prime is 52640674392883. The reversal of 52640674392864 is 46829347604625.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 52640674392795 and 52640674392804.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13908877 + ... + 17284044.

It is an arithmetic number, because the mean of its divisors is an integer number (2878950735990).

Almost surely, 2^{52640674392864} is an apocalyptic number.

It is an amenable number.

52640674392864 is an abundant number, since it is smaller than the sum of its proper divisors (85548960934656).

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

52640674392864 is a wasteful number, since it uses less digits than its factorization.

52640674392864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31210513 (or 31210505 counting only the distinct ones).

The product of its (nonzero) digits is 418037760, while the sum is 66.

The spelling of 52640674392864 in words is "fifty-two trillion, six hundred forty billion, six hundred seventy-four million, three hundred ninety-two thousand, eight hundred sixty-four".