26865506364 has 24 divisors (see below), whose sum is σ = 62900135760. Its totient is φ = 8924603904.

The previous prime is 26865506329. The next prime is 26865506387. The reversal of 26865506364 is 46360556862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3816949 + ... + 3823980.

It is an arithmetic number, because the mean of its divisors is an integer number (2620838990).

Almost surely, 2^26865506364 is an apocalyptic number.

It is an amenable number.

26865506364 is an abundant number, since it is smaller than the sum of its proper divisors (36034629396).

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

26865506364 is a wasteful number, since it uses less digits than its factorization.

26865506364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7641229 (or 7641227 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 51.

The spelling of 26865506364 in words is "twenty-six billion, eight hundred sixty-five million, five hundred six thousand, three hundred sixty-four".