26813628136 has 16 divisors (see below), whose sum is σ = 51224148900. Its totient is φ = 13153855104.

The previous prime is 26813628133. The next prime is 26813628181. The reversal of 26813628136 is 63182631862.

It can be written as a sum of positive squares in 2 ways, for example, as 25840562500 + 973065636 = 160750^2 + 31194^2 .

It is not an unprimeable number, because it can be changed into a prime (26813628133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31619421 + ... + 31620268.

Almost surely, 2^26813628136 is an apocalyptic number.

It is an amenable number.

26813628136 is a deficient number, since it is larger than the sum of its proper divisors (24410520764).

26813628136 is a wasteful number, since it uses less digits than its factorization.

26813628136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63239748 (or 63239744 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The spelling of 26813628136 in words is "twenty-six billion, eight hundred thirteen million, six hundred twenty-eight thousand, one hundred thirty-six".