26866816808104 has 64 divisors (see below), whose sum is σ = 65647425715200. Its totient is φ = 10003417242624.

The previous prime is 26866816808093. The next prime is 26866816808113. The reversal of 26866816808104 is 40180861866862.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1085427864 + ... + 1085452615.

It is an arithmetic number, because the mean of its divisors is an integer number (1025741026800).

Almost surely, 2^{26866816808104} is an apocalyptic number.

It is an amenable number.

26866816808104 is an abundant number, since it is smaller than the sum of its proper divisors (38780608907096).

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

26866816808104 is a wasteful number, since it uses less digits than its factorization.

26866816808104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170880522 (or 2170880518 counting only the distinct ones).

The product of its (nonzero) digits is 42467328, while the sum is 64.

The spelling of 26866816808104 in words is "twenty-six trillion, eight hundred sixty-six billion, eight hundred sixteen million, eight hundred eight thousand, one hundred four".