312551277007687 has 2 divisors, whose sum is σ = 312551277007688. Its totient is φ = 312551277007686.

The previous prime is 312551277007663. The next prime is 312551277007721. The reversal of 312551277007687 is 786700772155213.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312551277007687 - 2³⁹ = 312001521193799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312551277007637) by changing a digit.

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 as a sum of consecutive naturals, namely, 156275638503843 + 156275638503844.

It is an arithmetic number, because the mean of its divisors is an integer number (156275638503844).

Almost surely, 2^{312551277007687} is an apocalyptic number.

312551277007687 is a deficient number, since it is larger than the sum of its proper divisors (1).

312551277007687 is an equidigital number, since it uses as much as digits as its factorization.

312551277007687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34574400, while the sum is 61.

The spelling of 312551277007687 in words is "three hundred twelve trillion, five hundred fifty-one billion, two hundred seventy-seven million, seven thousand, six hundred eighty-seven".