26564851696 has 20 divisors (see below), whose sum is σ = 53707200912. Its totient is φ = 12704928896.

The previous prime is 26564851619. The next prime is 26564851721. The reversal of 26564851696 is 69615846562.

It is a self number, because there is not a number n which added to its sum of digits gives 26564851696.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36093181 + ... + 36093916.

Almost surely, 2^26564851696 is an apocalyptic number.

It is an amenable number.

26564851696 is an abundant number, since it is smaller than the sum of its proper divisors (27142349216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26564851696 is a wasteful number, since it uses less digits than its factorization.

26564851696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72187128 (or 72187122 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 58.

The spelling of 26564851696 in words is "twenty-six billion, five hundred sixty-four million, eight hundred fifty-one thousand, six hundred ninety-six".