18924419790 has 48 divisors (see below), whose sum is σ = 50010120576. Its totient is φ = 4963780800.

The previous prime is 18924419779. The next prime is 18924419827. The reversal of 18924419790 is 9791442981.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1718046 + ... + 1729025.

It is an arithmetic number, because the mean of its divisors is an integer number (1041877512).

Almost surely, 2^18924419790 is an apocalyptic number.

18924419790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18924419790 is an abundant number, since it is smaller than the sum of its proper divisors (31085700786).

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

18924419790 is a wasteful number, since it uses less digits than its factorization.

18924419790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3447145 (or 3447142 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The spelling of 18924419790 in words is "eighteen billion, nine hundred twenty-four million, four hundred nineteen thousand, seven hundred ninety".