18535793144 has 32 divisors (see below), whose sum is σ = 37923787440. Its totient is φ = 8423212800.

The previous prime is 18535793093. The next prime is 18535793167. The reversal of 18535793144 is 44139753581.

It is a junction number, because it is equal to n+sod(n) for n = 18535793092 and 18535793101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350252 + ... + 399684.

Almost surely, 2^18535793144 is an apocalyptic number.

It is an amenable number.

18535793144 is an abundant number, since it is smaller than the sum of its proper divisors (19387994296).

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

18535793144 is a wasteful number, since it uses less digits than its factorization.

18535793144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53711 (or 53707 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 50.

The spelling of 18535793144 in words is "eighteen billion, five hundred thirty-five million, seven hundred ninety-three thousand, one hundred forty-four".