51086536122215 has 32 divisors (see below), whose sum is σ = 67583309713920. Its totient is φ = 36762343516800.

The previous prime is 51086536122199. The next prime is 51086536122229. The reversal of 51086536122215 is 51222163568015.

It is not a de Polignac number, because 51086536122215 - 2⁴ = 51086536122199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51086536122215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1502381 + ... + 10219110.

It is an arithmetic number, because the mean of its divisors is an integer number (2111978428560).

Almost surely, 2^{51086536122215} is an apocalyptic number.

51086536122215 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51086536122215 is a deficient number, since it is larger than the sum of its proper divisors (16496773591705).

51086536122215 is a wasteful number, since it uses less digits than its factorization.

51086536122215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11722343.

The product of its (nonzero) digits is 864000, while the sum is 47.

The spelling of 51086536122215 in words is "fifty-one trillion, eighty-six billion, five hundred thirty-six million, one hundred twenty-two thousand, two hundred fifteen".