51587573872 has 40 divisors (see below), whose sum is σ = 100683511200. Its totient is φ = 25604947200.

The previous prime is 51587573813. The next prime is 51587573893. The reversal of 51587573872 is 27837578515.

It is a super-2 number, since 2×51587573872² (a number of 22 digits) contains 22 as substring.

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, 4526293 + ... + 4537675.

It is an arithmetic number, because the mean of its divisors is an integer number (2517087780).

Almost surely, 2^51587573872 is an apocalyptic number.

It is an amenable number.

51587573872 is a deficient number, since it is larger than the sum of its proper divisors (49095937328).

51587573872 is a wasteful number, since it uses less digits than its factorization.

51587573872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13441 (or 13435 counting only the distinct ones).

The product of its digits is 16464000, while the sum is 58.

The spelling of 51587573872 in words is "fifty-one billion, five hundred eighty-seven million, five hundred seventy-three thousand, eight hundred seventy-two".