18272818292 has 12 divisors (see below), whose sum is σ = 31978775136. Its totient is φ = 9136025400.

The previous prime is 18272818283. The next prime is 18272818327. The reversal of 18272818292 is 29281827281.

It is a self number, because there is not a number n which added to its sum of digits gives 18272818292.

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, 29393 + ... + 193415.

It is an arithmetic number, because the mean of its divisors is an integer number (2664897928).

Almost surely, 2^18272818292 is an apocalyptic number.

It is an amenable number.

18272818292 is a deficient number, since it is larger than the sum of its proper divisors (13705956844).

18272818292 is a wasteful number, since it uses less digits than its factorization.

18272818292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191878 (or 191876 counting only the distinct ones).

The product of its digits is 516096, while the sum is 50.

The spelling of 18272818292 in words is "eighteen billion, two hundred seventy-two million, eight hundred eighteen thousand, two hundred ninety-two".