51495389160 has 64 divisors (see below), whose sum is σ = 162617025600. Its totient is φ = 13009360896.

The previous prime is 51495389159. The next prime is 51495389171. The reversal of 51495389160 is 6198359415.

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 15 ways as a sum of consecutive naturals, for example, 11290569 + ... + 11295128.

It is an arithmetic number, because the mean of its divisors is an integer number (2540891025).

Almost surely, 2^51495389160 is an apocalyptic number.

It is an amenable number.

51495389160 is an abundant number, since it is smaller than the sum of its proper divisors (111121636440).

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

51495389160 is a wasteful number, since it uses less digits than its factorization.

51495389160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22585730 (or 22585726 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 51.

The spelling of 51495389160 in words is "fifty-one billion, four hundred ninety-five million, three hundred eighty-nine thousand, one hundred sixty".