51897757084 has 12 divisors (see below), whose sum is σ = 91060711000. Its totient is φ = 25880411088.

The previous prime is 51897757033. The next prime is 51897757091. The reversal of 51897757084 is 48075779815.

51897757084 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17115159 + ... + 17118190.

Almost surely, 2^51897757084 is an apocalyptic number.

It is an amenable number.

51897757084 is a deficient number, since it is larger than the sum of its proper divisors (39162953916).

51897757084 is a wasteful number, since it uses less digits than its factorization.

51897757084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34233732 (or 34233730 counting only the distinct ones).

The product of its (nonzero) digits is 19756800, while the sum is 61.

The spelling of 51897757084 in words is "fifty-one billion, eight hundred ninety-seven million, seven hundred fifty-seven thousand, eighty-four".