51114856173972 has 24 divisors (see below), whose sum is σ = 120138567069696. Its totient is φ = 16913918344128.

The previous prime is 51114856173763. The next prime is 51114856174069. The reversal of 51114856173972 is 27937165841115.

It is a happy number.

51114856173972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51114856173972² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15545879188 + ... + 15545882475.

It is an arithmetic number, because the mean of its divisors is an integer number (5005773627904).

Almost surely, 2^{51114856173972} is an apocalyptic number.

It is an amenable number.

51114856173972 is an abundant number, since it is smaller than the sum of its proper divisors (69023710895724).

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

51114856173972 is a wasteful number, since it uses less digits than its factorization.

51114856173972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31091761807 (or 31091761805 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 60.

The spelling of 51114856173972 in words is "fifty-one trillion, one hundred fourteen billion, eight hundred fifty-six million, one hundred seventy-three thousand, nine hundred seventy-two".