18272087872268 has 48 divisors (see below), whose sum is σ = 33904350568704. Its totient is φ = 8601208197120.

The previous prime is 18272087872261. The next prime is 18272087872301. The reversal of 18272087872268 is 86227878027281.

It is a junction number, because it is equal to n+sod(n) for n = 18272087872198 and 18272087872207.

It is not an unprimeable number, because it can be changed into a prime (18272087872261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33945680 + ... + 34479752.

It is an arithmetic number, because the mean of its divisors is an integer number (706340636848).

Almost surely, 2^{18272087872268} is an apocalyptic number.

It is an amenable number.

18272087872268 is a deficient number, since it is larger than the sum of its proper divisors (15632262696436).

18272087872268 is a wasteful number, since it uses less digits than its factorization.

18272087872268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541602 (or 541600 counting only the distinct ones).

The product of its (nonzero) digits is 134873088, while the sum is 68.

The spelling of 18272087872268 in words is "eighteen trillion, two hundred seventy-two billion, eighty-seven million, eight hundred seventy-two thousand, two hundred sixty-eight".