18575893492 has 12 divisors (see below), whose sum is σ = 35008414756. Its totient is φ = 8573489280.

The previous prime is 18575893487. The next prime is 18575893561. The reversal of 18575893492 is 29439857581.

It can be written as a sum of positive squares in 2 ways, for example, as 11448144016 + 7127749476 = 106996^2 + 84426^2 .

It is a super-2 number, since 2×18575893492² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18575893492.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178614309 + ... + 178614412.

Almost surely, 2^18575893492 is an apocalyptic number.

It is an amenable number.

18575893492 is a deficient number, since it is larger than the sum of its proper divisors (16432521264).

18575893492 is a wasteful number, since it uses less digits than its factorization.

18575893492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357228738 (or 357228736 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 61.

The spelling of 18575893492 in words is "eighteen billion, five hundred seventy-five million, eight hundred ninety-three thousand, four hundred ninety-two".