18244680790 has 64 divisors (see below), whose sum is σ = 38774661120. Its totient is φ = 6048529920.

The previous prime is 18244680781. The next prime is 18244680803. The reversal of 18244680790 is 9708644281.

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 31 ways as a sum of consecutive naturals, for example, 3380334 + ... + 3385726.

It is an arithmetic number, because the mean of its divisors is an integer number (605854080).

Almost surely, 2^18244680790 is an apocalyptic number.

18244680790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18244680790 is an abundant number, since it is smaller than the sum of its proper divisors (20529980330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18244680790 is a wasteful number, since it uses less digits than its factorization.

18244680790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6997.

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 18244680790 in words is "eighteen billion, two hundred forty-four million, six hundred eighty thousand, seven hundred ninety".