51380752005516 has 96 divisors (see below), whose sum is σ = 120879731427840. Its totient is φ = 16985883285504.

The previous prime is 51380752005509. The next prime is 51380752005563. The reversal of 51380752005516 is 61550025708315.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3702043065 + ... + 3702056943.

It is an arithmetic number, because the mean of its divisors is an integer number (1259163869040).

Almost surely, 2^{51380752005516} is an apocalyptic number.

It is an amenable number.

51380752005516 is an abundant number, since it is smaller than the sum of its proper divisors (69498979422324).

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

51380752005516 is a wasteful number, since it uses less digits than its factorization.

51380752005516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18943 (or 18941 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 48.

The spelling of 51380752005516 in words is "fifty-one trillion, three hundred eighty billion, seven hundred fifty-two million, five thousand, five hundred sixteen".