51031173475 has 6 divisors (see below), whose sum is σ = 63278655140. Its totient is φ = 40824938760.

The previous prime is 51031173467. The next prime is 51031173481. The reversal of 51031173475 is 57437113015.

It is not a de Polignac number, because 51031173475 - 2³ = 51031173467 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1020623445 + ... + 1020623494.

Almost surely, 2^51031173475 is an apocalyptic number.

51031173475 is a deficient number, since it is larger than the sum of its proper divisors (12247481665).

51031173475 is a wasteful number, since it uses less digits than its factorization.

51031173475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041246949 (or 2041246944 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 37.

The spelling of 51031173475 in words is "fifty-one billion, thirty-one million, one hundred seventy-three thousand, four hundred seventy-five".