26907031655 has 12 divisors (see below), whose sum is σ = 37560020040. Its totient is φ = 18450535824.

The previous prime is 26907031637. The next prime is 26907031699. The reversal of 26907031655 is 55613070962.

It is a de Polignac number, because none of the positive numbers 2^k-26907031655 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54912065 + ... + 54912554.

It is an arithmetic number, because the mean of its divisors is an integer number (3130001670).

Almost surely, 2^26907031655 is an apocalyptic number.

26907031655 is a deficient number, since it is larger than the sum of its proper divisors (10652988385).

26907031655 is a wasteful number, since it uses less digits than its factorization.

26907031655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109824638 (or 109824631 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 44.

The spelling of 26907031655 in words is "twenty-six billion, nine hundred seven million, thirty-one thousand, six hundred fifty-five".