18826864211013 has 16 divisors (see below), whose sum is σ = 25540290273600. Its totient is φ = 12332546124800.

The previous prime is 18826864210967. The next prime is 18826864211039. The reversal of 18826864211013 is 31011246862881.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18826864211013 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18826864211053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25338588 + ... + 26071013.

It is an arithmetic number, because the mean of its divisors is an integer number (1596268142100).

Almost surely, 2^{18826864211013} is an apocalyptic number.

It is an amenable number.

18826864211013 is a deficient number, since it is larger than the sum of its proper divisors (6713426062587).

18826864211013 is a wasteful number, since it uses less digits than its factorization.

18826864211013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51411732.

The product of its (nonzero) digits is 884736, while the sum is 51.

The spelling of 18826864211013 in words is "eighteen trillion, eight hundred twenty-six billion, eight hundred sixty-four million, two hundred eleven thousand, thirteen".