18087537032 has 16 divisors (see below), whose sum is σ = 33974378640. Its totient is φ = 9027702736.

The previous prime is 18087537029. The next prime is 18087537067. The reversal of 18087537032 is 23073578081.

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, 2003438 + ... + 2012445.

It is an arithmetic number, because the mean of its divisors is an integer number (2123398665).

Almost surely, 2^18087537032 is an apocalyptic number.

It is an amenable number.

18087537032 is a deficient number, since it is larger than the sum of its proper divisors (15886841608).

18087537032 is a wasteful number, since it uses less digits than its factorization.

18087537032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4016452 (or 4016448 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 18087537032 in words is "eighteen billion, eighty-seven million, five hundred thirty-seven thousand, thirty-two".