51364609976648 has 16 divisors (see below), whose sum is σ = 96431018106480. Its totient is φ = 25649671814928.

The previous prime is 51364609976599. The next prime is 51364609976699. The reversal of 51364609976648 is 84667990646315.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4079139986 + ... + 4079152577.

It is an arithmetic number, because the mean of its divisors is an integer number (6026938631655).

Almost surely, 2^{51364609976648} is an apocalyptic number.

It is an amenable number.

51364609976648 is a deficient number, since it is larger than the sum of its proper divisors (45066408129832).

51364609976648 is a wasteful number, since it uses less digits than its factorization.

51364609976648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8158293356 (or 8158293352 counting only the distinct ones).

The product of its (nonzero) digits is 1410877440, while the sum is 74.

The spelling of 51364609976648 in words is "fifty-one trillion, three hundred sixty-four billion, six hundred nine million, nine hundred seventy-six thousand, six hundred forty-eight".