18786472032 has 24 divisors (see below), whose sum is σ = 49314489336. Its totient is φ = 6262157312.

The previous prime is 18786472027. The next prime is 18786472063. The reversal of 18786472032 is 23027468781.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 97846113 + ... + 97846304.

It is an arithmetic number, because the mean of its divisors is an integer number (2054770389).

Almost surely, 2^18786472032 is an apocalyptic number.

18786472032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18786472032 is an abundant number, since it is smaller than the sum of its proper divisors (30528017304).

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

18786472032 is a wasteful number, since it uses less digits than its factorization.

18786472032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195692430 (or 195692422 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 18786472032 in words is "eighteen billion, seven hundred eighty-six million, four hundred seventy-two thousand, thirty-two".