18475887334 has 12 divisors (see below), whose sum is σ = 29439952884. Its totient is φ = 8694534944.

The previous prime is 18475887319. The next prime is 18475887431. The reversal of 18475887334 is 43378857481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15982024 + ... + 15983179.

It is an arithmetic number, because the mean of its divisors is an integer number (2453329407).

Almost surely, 2^18475887334 is an apocalyptic number.

18475887334 is a deficient number, since it is larger than the sum of its proper divisors (10964065550).

18475887334 is a wasteful number, since it uses less digits than its factorization.

18475887334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31965239 (or 31965222 counting only the distinct ones).

The product of its digits is 18063360, while the sum is 58.

The spelling of 18475887334 in words is "eighteen billion, four hundred seventy-five million, eight hundred eighty-seven thousand, three hundred thirty-four".