51875729928 has 96 divisors (see below), whose sum is σ = 154625833440. Its totient is φ = 15580776960.

The previous prime is 51875729909. The next prime is 51875729929. The reversal of 51875729928 is 82992757815.

51875729928 is a `hidden beast` number, since 51 + 8 + 7 + 572 + 9 + 9 + 2 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (51875729929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 200326 + ... + 379317.

It is an arithmetic number, because the mean of its divisors is an integer number (1610685765).

Almost surely, 2^51875729928 is an apocalyptic number.

It is an amenable number.

51875729928 is an abundant number, since it is smaller than the sum of its proper divisors (102750103512).

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

51875729928 is a wasteful number, since it uses less digits than its factorization.

51875729928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579779 (or 579772 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 63.

The spelling of 51875729928 in words is "fifty-one billion, eight hundred seventy-five million, seven hundred twenty-nine thousand, nine hundred twenty-eight".