51086536122199 has 2 divisors, whose sum is σ = 51086536122200. Its totient is φ = 51086536122198.

The previous prime is 51086536122179. The next prime is 51086536122229. The reversal of 51086536122199 is 99122163568015.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51086536122199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51086536122119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25543268061099 + 25543268061100.

It is an arithmetic number, because the mean of its divisors is an integer number (25543268061100).

Almost surely, 2^{51086536122199} is an apocalyptic number.

51086536122199 is a deficient number, since it is larger than the sum of its proper divisors (1).

51086536122199 is an equidigital number, since it uses as much as digits as its factorization.

51086536122199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6998400, while the sum is 58.

The spelling of 51086536122199 in words is "fifty-one trillion, eighty-six billion, five hundred thirty-six million, one hundred twenty-two thousand, one hundred ninety-nine".