274877906687 has 2 divisors, whose sum is σ = 274877906688. Its totient is φ = 274877906686.

The previous prime is 274877906647. The next prime is 274877906713. The reversal of 274877906687 is 786609778472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 274877906687 - 2⁸ = 274877906431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 274877906687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274877906627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (37) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137438953343 + 137438953344.

It is an arithmetic number, because the mean of its divisors is an integer number (137438953344).

Almost surely, 2^274877906687 is an apocalyptic number.

274877906687 is a deficient number, since it is larger than the sum of its proper divisors (1).

274877906687 is an equidigital number, since it uses as much as digits as its factorization.

274877906687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 398297088, while the sum is 71.

The spelling of 274877906687 in words is "two hundred seventy-four billion, eight hundred seventy-seven million, nine hundred six thousand, six hundred eighty-seven".