51233547428928 has 112 divisors (see below), whose sum is σ = 151449281576320. Its totient is φ = 16983496281600.

The previous prime is 51233547428923. The next prime is 51233547428933. The reversal of 51233547428928 is 82982474533215.

51233547428928 is a `hidden beast` number, since 5 + 1 + 2 + 3 + 3 + 547 + 4 + 2 + 89 + 2 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (51233547428923) and next prime (51233547428933).

It is a super-2 number, since 2×51233547428928² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51233547428923) 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, 81590668 + ... + 82216203.

It is an arithmetic number, because the mean of its divisors is an integer number (1352225728360).

Almost surely, 2^{51233547428928} is an apocalyptic number.

It is an amenable number.

51233547428928 is an abundant number, since it is smaller than the sum of its proper divisors (100215734147392).

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

51233547428928 is a wasteful number, since it uses less digits than its factorization.

51233547428928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163807073 (or 163807057 counting only the distinct ones).

The product of its digits is 116121600, while the sum is 63.

The spelling of 51233547428928 in words is "fifty-one trillion, two hundred thirty-three billion, five hundred forty-seven million, four hundred twenty-eight thousand, nine hundred twenty-eight".