26661579086 has 16 divisors (see below), whose sum is σ = 40867907184. Its totient is φ = 13040436864.

The previous prime is 26661579079. The next prime is 26661579101. The reversal of 26661579086 is 68097516662.

It is a happy number.

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, 337460 + ... + 408903.

It is an arithmetic number, because the mean of its divisors is an integer number (2554244199).

Almost surely, 2^26661579086 is an apocalyptic number.

26661579086 is a deficient number, since it is larger than the sum of its proper divisors (14206328098).

26661579086 is a wasteful number, since it uses less digits than its factorization.

26661579086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746755.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 26661579086 in words is "twenty-six billion, six hundred sixty-one million, five hundred seventy-nine thousand, eighty-six".