51612744834 has 64 divisors (see below), whose sum is σ = 131102822400. Its totient is φ = 14743929744.

The previous prime is 51612744811. The next prime is 51612744851. The reversal of 51612744834 is 43844721615.

51612744834 is a `hidden beast` number, since 5 + 161 + 2 + 7 + 4 + 483 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 51612744834.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3651609 + ... + 3665715.

It is an arithmetic number, because the mean of its divisors is an integer number (2048481600).

Almost surely, 2^51612744834 is an apocalyptic number.

51612744834 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

51612744834 is an abundant number, since it is smaller than the sum of its proper divisors (79490077566).

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

51612744834 is a wasteful number, since it uses less digits than its factorization.

51612744834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23804 (or 23798 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The spelling of 51612744834 in words is "fifty-one billion, six hundred twelve million, seven hundred forty-four thousand, eight hundred thirty-four".