51615494095872 has 528 divisors, whose sum is σ = 161458346649600. Its totient is φ = 14616432230400.

The previous prime is 51615494095859. The next prime is 51615494095933. The reversal of 51615494095872 is 27859049451615.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27587115097 + ... + 27587116967.

It is an arithmetic number, because the mean of its divisors is an integer number (305792323200).

Almost surely, 2^{51615494095872} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51615494095872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80729173324800).

51615494095872 is an abundant number, since it is smaller than the sum of its proper divisors (109842852553728).

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

51615494095872 is a wasteful number, since it uses less digits than its factorization.

51615494095872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3438 (or 3413 counting only the distinct ones).

The product of its (nonzero) digits is 108864000, while the sum is 66.

The spelling of 51615494095872 in words is "fifty-one trillion, six hundred fifteen billion, four hundred ninety-four million, ninety-five thousand, eight hundred seventy-two".