18350337172 has 12 divisors (see below), whose sum is σ = 32139356256. Its totient is φ = 9167663960.

The previous prime is 18350337167. The next prime is 18350337211. The reversal of 18350337172 is 27173305381.

It is a congruent number.

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, 1870654 + ... + 1880437.

It is an arithmetic number, because the mean of its divisors is an integer number (2678279688).

Almost surely, 2^18350337172 is an apocalyptic number.

It is an amenable number.

18350337172 is a deficient number, since it is larger than the sum of its proper divisors (13789019084).

18350337172 is a wasteful number, since it uses less digits than its factorization.

18350337172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3752318 (or 3752316 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 18350337172 in words is "eighteen billion, three hundred fifty million, three hundred thirty-seven thousand, one hundred seventy-two".