26394634875 has 64 divisors (see below), whose sum is σ = 50227107840. Its totient is φ = 12058416000.

The previous prime is 26394634771. The next prime is 26394634897. The reversal of 26394634875 is 57843649362.

It is not a de Polignac number, because 26394634875 - 2⁹ = 26394634363 is a prime.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 7114521 + ... + 7118229.

It is an arithmetic number, because the mean of its divisors is an integer number (784798560).

Almost surely, 2^26394634875 is an apocalyptic number.

26394634875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

26394634875 is a deficient number, since it is larger than the sum of its proper divisors (23832472965).

26394634875 is a wasteful number, since it uses less digits than its factorization.

26394634875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6445 (or 6435 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 57.

The spelling of 26394634875 in words is "twenty-six billion, three hundred ninety-four million, six hundred thirty-four thousand, eight hundred seventy-five".