18007457572 has 24 divisors (see below), whose sum is σ = 34254311616. Its totient is φ = 8233457568.

The previous prime is 18007457557. The next prime is 18007457617. The reversal of 18007457572 is 27575470081.

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, 1612648 + ... + 1623775.

It is an arithmetic number, because the mean of its divisors is an integer number (1427262984).

Almost surely, 2^18007457572 is an apocalyptic number.

It is an amenable number.

18007457572 is a deficient number, since it is larger than the sum of its proper divisors (16246854044).

18007457572 is a wasteful number, since it uses less digits than its factorization.

18007457572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3236547 (or 3236545 counting only the distinct ones).

The product of its (nonzero) digits is 548800, while the sum is 46.

The spelling of 18007457572 in words is "eighteen billion, seven million, four hundred fifty-seven thousand, five hundred seventy-two".