18813826207 has 12 divisors (see below), whose sum is σ = 20884422888. Its totient is φ = 16934126000.

The previous prime is 18813826153. The next prime is 18813826211. The reversal of 18813826207 is 70262831881.

It is not a de Polignac number, because 18813826207 - 2¹⁹ = 18813301919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18813836207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 757513 + ... + 781954.

It is an arithmetic number, because the mean of its divisors is an integer number (1740368574).

Almost surely, 2^18813826207 is an apocalyptic number.

18813826207 is a deficient number, since it is larger than the sum of its proper divisors (2070596681).

18813826207 is a wasteful number, since it uses less digits than its factorization.

18813826207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539590 (or 1539579 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 46.

The spelling of 18813826207 in words is "eighteen billion, eight hundred thirteen million, eight hundred twenty-six thousand, two hundred seven".