18090548632 has 32 divisors (see below), whose sum is σ = 36663842880. Its totient is φ = 8318661120.

The previous prime is 18090548617. The next prime is 18090548653. The reversal of 18090548632 is 23684509081.

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, 292753 + ... + 349120.

It is an arithmetic number, because the mean of its divisors is an integer number (1145745090).

Almost surely, 2^18090548632 is an apocalyptic number.

It is an amenable number.

18090548632 is an abundant number, since it is smaller than the sum of its proper divisors (18573294248).

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

18090548632 is a wasteful number, since it uses less digits than its factorization.

18090548632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642163 (or 642159 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 18090548632 in words is "eighteen billion, ninety million, five hundred forty-eight thousand, six hundred thirty-two".