51616372048 has 20 divisors (see below), whose sum is σ = 100044161620. Its totient is φ = 25798523904.

The previous prime is 51616372037. The next prime is 51616372051. The reversal of 51616372048 is 84027361615.

It can be written as a sum of positive squares in 2 ways, for example, as 4834142784 + 46782229264 = 69528^2 + 216292^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51616371995 and 51616372013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559713 + ... + 645376.

It is an arithmetic number, because the mean of its divisors is an integer number (5002208081).

Almost surely, 2^51616372048 is an apocalyptic number.

It is an amenable number.

51616372048 is a deficient number, since it is larger than the sum of its proper divisors (48427789572).

51616372048 is a wasteful number, since it uses less digits than its factorization.

51616372048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207774 (or 1207768 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 51616372048 in words is "fifty-one billion, six hundred sixteen million, three hundred seventy-two thousand, forty-eight".