51795912018 has 64 divisors (see below), whose sum is σ = 112711271040. Its totient is φ = 15801910272.

The previous prime is 51795912017. The next prime is 51795912059. The reversal of 51795912018 is 81021959715.

It is not an unprimeable number, because it can be changed into a prime (51795912013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12274713 + ... + 12278931.

It is an arithmetic number, because the mean of its divisors is an integer number (1761113610).

Almost surely, 2^51795912018 is an apocalyptic number.

51795912018 is an abundant number, since it is smaller than the sum of its proper divisors (60915359022).

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

51795912018 is a wasteful number, since it uses less digits than its factorization.

51795912018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7531.

The product of its (nonzero) digits is 226800, while the sum is 48.

The spelling of 51795912018 in words is "fifty-one billion, seven hundred ninety-five million, nine hundred twelve thousand, eighteen".