26517078966 has 32 divisors (see below), whose sum is σ = 61515106560. Its totient is φ = 7463228256.

The previous prime is 26517078901. The next prime is 26517078989. The reversal of 26517078966 is 66987071562.

It is a congruent number.

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, 4708821 + ... + 4714448.

It is an arithmetic number, because the mean of its divisors is an integer number (1922347080).

Almost surely, 2^26517078966 is an apocalyptic number.

26517078966 is an abundant number, since it is smaller than the sum of its proper divisors (34998027594).

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

26517078966 is a wasteful number, since it uses less digits than its factorization.

26517078966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9423348.

The product of its (nonzero) digits is 7620480, while the sum is 57.

The spelling of 26517078966 in words is "twenty-six billion, five hundred seventeen million, seventy-eight thousand, nine hundred sixty-six".