18765900456 has 16 divisors (see below), whose sum is σ = 46914751200. Its totient is φ = 6255300144.

The previous prime is 18765900451. The next prime is 18765900457. The reversal of 18765900456 is 65400956781.

It is a super-3 number, since 3×18765900456³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18765900399 and 18765900408.

It is not an unprimeable number, because it can be changed into a prime (18765900451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390956236 + ... + 390956283.

It is an arithmetic number, because the mean of its divisors is an integer number (2932171950).

Almost surely, 2^18765900456 is an apocalyptic number.

It is an amenable number.

18765900456 is an abundant number, since it is smaller than the sum of its proper divisors (28148850744).

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

18765900456 is a wasteful number, since it uses less digits than its factorization.

18765900456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781912528 (or 781912524 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 18765900456 in words is "eighteen billion, seven hundred sixty-five million, nine hundred thousand, four hundred fifty-six".