26942925591 has 12 divisors (see below), whose sum is σ = 40358950632. Its totient is φ = 17961950232.

The previous prime is 26942925557. The next prime is 26942925631. The reversal of 26942925591 is 19552924962.

26942925591 is a `hidden beast` number, since 2 + 6 + 9 + 4 + 29 + 25 + 591 = 666.

It is not a de Polignac number, because 26942925591 - 2⁷ = 26942925463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26942925521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55437876 + ... + 55438361.

It is an arithmetic number, because the mean of its divisors is an integer number (3363245886).

Almost surely, 2^26942925591 is an apocalyptic number.

26942925591 is a deficient number, since it is larger than the sum of its proper divisors (13416025041).

26942925591 is an equidigital number, since it uses as much as digits as its factorization.

26942925591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110876252 (or 110876240 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 54.

The spelling of 26942925591 in words is "twenty-six billion, nine hundred forty-two million, nine hundred twenty-five thousand, five hundred ninety-one".