18868024272 has 40 divisors (see below), whose sum is σ = 48761834400. Its totient is φ = 6286833280.

The previous prime is 18868024267. The next prime is 18868024313. The reversal of 18868024272 is 27242086881.

It is a super-2 number, since 2×18868024272² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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 7 ways as a sum of consecutive naturals, for example, 45247 + ... + 199457.

It is an arithmetic number, because the mean of its divisors is an integer number (1219045860).

Almost surely, 2^18868024272 is an apocalyptic number.

18868024272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18868024272 is an abundant number, since it is smaller than the sum of its proper divisors (29893810128).

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

18868024272 is a wasteful number, since it uses less digits than its factorization.

18868024272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156771 (or 156765 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 48.

The spelling of 18868024272 in words is "eighteen billion, eight hundred sixty-eight million, twenty-four thousand, two hundred seventy-two".