51273584732 has 24 divisors (see below), whose sum is σ = 89911021200. Its totient is φ = 25584771456.

The previous prime is 51273584671. The next prime is 51273584741. The reversal of 51273584732 is 23748537215.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5117744 + ... + 5127752.

It is an arithmetic number, because the mean of its divisors is an integer number (3746292550).

Almost surely, 2^51273584732 is an apocalyptic number.

It is an amenable number.

51273584732 is a deficient number, since it is larger than the sum of its proper divisors (38637436468).

51273584732 is a wasteful number, since it uses less digits than its factorization.

51273584732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12485 (or 12483 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 47.

The spelling of 51273584732 in words is "fifty-one billion, two hundred seventy-three million, five hundred eighty-four thousand, seven hundred thirty-two".