51057685464140 has 12 divisors (see below), whose sum is σ = 107221139474736. Its totient is φ = 20423074185648.

The previous prime is 51057685464119. The next prime is 51057685464167. The reversal of 51057685464140 is 4146458675015.

It is a happy number.

51057685464140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×51057685464140⁴ (a number of 56 digits) contains 4444 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1276442136584 + ... + 1276442136623.

It is an arithmetic number, because the mean of its divisors is an integer number (8935094956228).

Almost surely, 2^{51057685464140} is an apocalyptic number.

It is an amenable number.

51057685464140 is an abundant number, since it is smaller than the sum of its proper divisors (56163454010596).

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

51057685464140 is a wasteful number, since it uses less digits than its factorization.

51057685464140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552884273216 (or 2552884273214 counting only the distinct ones).

The product of its (nonzero) digits is 16128000, while the sum is 56.

The spelling of 51057685464140 in words is "fifty-one trillion, fifty-seven billion, six hundred eighty-five million, four hundred sixty-four thousand, one hundred forty".