18713208272 has 80 divisors (see below), whose sum is σ = 40228228800. Its totient is φ = 8361323520.

The previous prime is 18713208251. The next prime is 18713208323. The reversal of 18713208272 is 27280231781.

It is a super-3 number, since 3×18713208272³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6708254 + ... + 6711042.

It is an arithmetic number, because the mean of its divisors is an integer number (502852860).

Almost surely, 2^18713208272 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 18713208272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20114114400).

18713208272 is an abundant number, since it is smaller than the sum of its proper divisors (21515020528).

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

18713208272 is a wasteful number, since it uses less digits than its factorization.

18713208272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3444 (or 3438 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 41.

The spelling of 18713208272 in words is "eighteen billion, seven hundred thirteen million, two hundred eight thousand, two hundred seventy-two".