18554675272 has 64 divisors (see below), whose sum is σ = 41196211200. Its totient is φ = 7666686720.

The previous prime is 18554675261. The next prime is 18554675273. The reversal of 18554675272 is 27257645581.

It is not an unprimeable number, because it can be changed into a prime (18554675273) 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, 447118 + ... + 486850.

It is an arithmetic number, because the mean of its divisors is an integer number (643690800).

Almost surely, 2^18554675272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18554675272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20598105600).

18554675272 is an abundant number, since it is smaller than the sum of its proper divisors (22641535928).

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

18554675272 is a wasteful number, since it uses less digits than its factorization.

18554675272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40046 (or 40042 counting only the distinct ones).

The product of its digits is 4704000, while the sum is 52.

The spelling of 18554675272 in words is "eighteen billion, five hundred fifty-four million, six hundred seventy-five thousand, two hundred seventy-two".