51339421781176 has 64 divisors (see below), whose sum is σ = 102354115380480. Its totient is φ = 24057901701120.

The previous prime is 51339421780987. The next prime is 51339421781177. The reversal of 51339421781176 is 67118712493315.

It is a self number, because there is not a number n which added to its sum of digits gives 51339421781176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51339421781177) 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, 39935641 + ... + 41201143.

It is an arithmetic number, because the mean of its divisors is an integer number (1599283052820).

Almost surely, 2^{51339421781176} is an apocalyptic number.

It is an amenable number.

51339421781176 is a deficient number, since it is larger than the sum of its proper divisors (51014693599304).

51339421781176 is a wasteful number, since it uses less digits than its factorization.

51339421781176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266784 (or 1266780 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 58.

The spelling of 51339421781176 in words is "fifty-one trillion, three hundred thirty-nine billion, four hundred twenty-one million, seven hundred eighty-one thousand, one hundred seventy-six".