51860411984 has 10 divisors (see below), whose sum is σ = 100479548250. Its totient is φ = 25930205984.

The previous prime is 51860411909. The next prime is 51860411989. The reversal of 51860411984 is 48911406815.

It can be written as a sum of positive squares in only one way, i.e., 51224363584 + 636048400 = 226328^2 + 25220^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51860411989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1620637859 + ... + 1620637890.

It is an arithmetic number, because the mean of its divisors is an integer number (10047954825).

Almost surely, 2^51860411984 is an apocalyptic number.

It is an amenable number.

51860411984 is a deficient number, since it is larger than the sum of its proper divisors (48619136266).

51860411984 is a wasteful number, since it uses less digits than its factorization.

51860411984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3241275757 (or 3241275751 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 47.

The spelling of 51860411984 in words is "fifty-one billion, eight hundred sixty million, four hundred eleven thousand, nine hundred eighty-four".