51733156872 has 32 divisors (see below), whose sum is σ = 133504922880. Its totient is φ = 16688114880.

The previous prime is 51733156861. The next prime is 51733156883. The reversal of 51733156872 is 27865133715.

It is an interprime number because it is at equal distance from previous prime (51733156861) and next prime (51733156883).

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, 34766163 + ... + 34767650.

It is an arithmetic number, because the mean of its divisors is an integer number (4172028840).

Almost surely, 2^51733156872 is an apocalyptic number.

It is an amenable number.

51733156872 is an abundant number, since it is smaller than the sum of its proper divisors (81771766008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51733156872 is a wasteful number, since it uses less digits than its factorization.

51733156872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69533853 (or 69533849 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 48.

The spelling of 51733156872 in words is "fifty-one billion, seven hundred thirty-three million, one hundred fifty-six thousand, eight hundred seventy-two".