18583992050 has 54 divisors (see below), whose sum is σ = 37454955687. Its totient is φ = 6857154720.

The previous prime is 18583992047. The next prime is 18583992067. The reversal of 18583992050 is 5029938581.

It can be written as a sum of positive squares in 5 ways, for example, as 1163423881 + 17420568169 = 34109^2 + 131987^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=96395.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18583992050.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 12530609 + ... + 12532091.

Almost surely, 2^18583992050 is an apocalyptic number.

18583992050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18583992050 is an abundant number, since it is smaller than the sum of its proper divisors (18870963637).

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

18583992050 is an equidigital number, since it uses as much as digits as its factorization.

18583992050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3004 (or 1503 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 50.

Multiplying 18583992050 by its sum of digits (50), we get a square (929199602500 = 963950²).

18583992050 divided by its sum of digits (50) gives a square (371679841 = 19279²).

The spelling of 18583992050 in words is "eighteen billion, five hundred eighty-three million, nine hundred ninety-two thousand, fifty".