18826811829 has 32 divisors (see below), whose sum is σ = 31912304640. Its totient is φ = 10745953776.

The previous prime is 18826811807. The next prime is 18826811831. The reversal of 18826811829 is 92811862881.

It is not a de Polignac number, because 18826811829 - 2¹³ = 18826803637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18826811849) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111492 + ... + 223794.

It is an arithmetic number, because the mean of its divisors is an integer number (997259520).

Almost surely, 2^18826811829 is an apocalyptic number.

It is an amenable number.

18826811829 is a deficient number, since it is larger than the sum of its proper divisors (13085492811).

18826811829 is a wasteful number, since it uses less digits than its factorization.

18826811829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113206 (or 113200 counting only the distinct ones).

The product of its digits is 884736, while the sum is 54.

The spelling of 18826811829 in words is "eighteen billion, eight hundred twenty-six million, eight hundred eleven thousand, eight hundred twenty-nine".