18487672192 has 64 divisors (see below), whose sum is σ = 41265213840. Its totient is φ = 8176343040.

The previous prime is 18487672187. The next prime is 18487672199. The reversal of 18487672192 is 29127678481.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18487672199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125343 + ... + 229534.

Almost surely, 2^18487672192 is an apocalyptic number.

It is an amenable number.

18487672192 is an abundant number, since it is smaller than the sum of its proper divisors (22777541648).

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

18487672192 is a wasteful number, since it uses less digits than its factorization.

18487672192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354939 (or 354927 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 55.

The spelling of 18487672192 in words is "eighteen billion, four hundred eighty-seven million, six hundred seventy-two thousand, one hundred ninety-two".