51110168854539 has 16 divisors (see below), whose sum is σ = 71735559795200. Its totient is φ = 32279211382176.

The previous prime is 51110168854523. The next prime is 51110168854541. The reversal of 51110168854539 is 93545886101115.

It is not a de Polignac number, because 51110168854539 - 2⁴ = 51110168854523 is a prime.

It is a super-2 number, since 2×51110168854539² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51110168854439) 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, 10357939 + ... + 14474364.

It is an arithmetic number, because the mean of its divisors is an integer number (4483472487200).

Almost surely, 2^{51110168854539} is an apocalyptic number.

51110168854539 is a deficient number, since it is larger than the sum of its proper divisors (20625390940661).

51110168854539 is a wasteful number, since it uses less digits than its factorization.

51110168854539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24868434.

The product of its (nonzero) digits is 5184000, while the sum is 57.

The spelling of 51110168854539 in words is "fifty-one trillion, one hundred ten billion, one hundred sixty-eight million, eight hundred fifty-four thousand, five hundred thirty-nine".