18492656736 has 48 divisors (see below), whose sum is σ = 48559258944. Its totient is φ = 6162182784.

The previous prime is 18492656723. The next prime is 18492656759. The reversal of 18492656736 is 63765629481.

It is a tau number, because it is divible by the number of its divisors (48).

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, 275731 + ... + 336173.

It is an arithmetic number, because the mean of its divisors is an integer number (1011651228).

Almost surely, 2^18492656736 is an apocalyptic number.

18492656736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18492656736 is an abundant number, since it is smaller than the sum of its proper divisors (30066602208).

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

18492656736 is a wasteful number, since it uses less digits than its factorization.

18492656736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63643 (or 63635 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 57.

The spelling of 18492656736 in words is "eighteen billion, four hundred ninety-two million, six hundred fifty-six thousand, seven hundred thirty-six".