51532817412 has 48 divisors (see below), whose sum is σ = 127754807040. Its totient is φ = 16121424672.

The previous prime is 51532817411. The next prime is 51532817447. The reversal of 51532817412 is 21471823515.

51532817412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51532817411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1031778 + ... + 1080569.

It is an arithmetic number, because the mean of its divisors is an integer number (2661558480).

Almost surely, 2^51532817412 is an apocalyptic number.

It is an amenable number.

51532817412 is an abundant number, since it is smaller than the sum of its proper divisors (76221989628).

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

51532817412 is a wasteful number, since it uses less digits than its factorization.

51532817412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2112480 (or 2112478 counting only the distinct ones).

The product of its digits is 67200, while the sum is 39.

The spelling of 51532817412 in words is "fifty-one billion, five hundred thirty-two million, eight hundred seventeen thousand, four hundred twelve".