18362020272 has 40 divisors (see below), whose sum is σ = 47477598144. Its totient is φ = 6115205184.

The previous prime is 18362020267. The next prime is 18362020291. The reversal of 18362020272 is 27202026381.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116418 + ... + 224225.

Almost surely, 2^18362020272 is an apocalyptic number.

18362020272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18362020272 is an abundant number, since it is smaller than the sum of its proper divisors (29115577872).

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

18362020272 is a wasteful number, since it uses less digits than its factorization.

18362020272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341777 (or 341771 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The spelling of 18362020272 in words is "eighteen billion, three hundred sixty-two million, twenty thousand, two hundred seventy-two".