51095365728 has 96 divisors (see below), whose sum is σ = 148081675392. Its totient is φ = 15296870400.

The previous prime is 51095365721. The next prime is 51095365729. The reversal of 51095365728 is 82756359015.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×51095365728² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51095365721) 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, 203833 + ... + 379128.

It is an arithmetic number, because the mean of its divisors is an integer number (1542517452).

Almost surely, 2^51095365728 is an apocalyptic number.

It is an amenable number.

51095365728 is an abundant number, since it is smaller than the sum of its proper divisors (96986309664).

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

51095365728 is a wasteful number, since it uses less digits than its factorization.

51095365728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583068 (or 583060 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 51.

The spelling of 51095365728 in words is "fifty-one billion, ninety-five million, three hundred sixty-five thousand, seven hundred twenty-eight".