51889588664 has 16 divisors (see below), whose sum is σ = 97358606520. Its totient is φ = 25927293600.

The previous prime is 51889588657. The next prime is 51889588711. The reversal of 51889588664 is 46688598815.

It is a junction number, because it is equal to n+sod(n) for n = 51889588594 and 51889588603.

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, 2174987 + ... + 2198714.

Almost surely, 2^51889588664 is an apocalyptic number.

It is an amenable number.

51889588664 is a deficient number, since it is larger than the sum of its proper divisors (45469017856).

51889588664 is a wasteful number, since it uses less digits than its factorization.

51889588664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4375190 (or 4375186 counting only the distinct ones).

The product of its digits is 132710400, while the sum is 68.

The spelling of 51889588664 in words is "fifty-one billion, eight hundred eighty-nine million, five hundred eighty-eight thousand, six hundred sixty-four".