18412748572 has 24 divisors (see below), whose sum is σ = 32333661360. Its totient is φ = 9174591360.

The previous prime is 18412748537. The next prime is 18412748587. The reversal of 18412748572 is 27584721481.

It is a happy number.

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, 3785422 + ... + 3790282.

It is an arithmetic number, because the mean of its divisors is an integer number (1347235890).

Almost surely, 2^18412748572 is an apocalyptic number.

It is an amenable number.

18412748572 is a deficient number, since it is larger than the sum of its proper divisors (13920912788).

18412748572 is a wasteful number, since it uses less digits than its factorization.

18412748572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7941 (or 7939 counting only the distinct ones).

The product of its digits is 1003520, while the sum is 49.

The spelling of 18412748572 in words is "eighteen billion, four hundred twelve million, seven hundred forty-eight thousand, five hundred seventy-two".