18467328072 has 64 divisors (see below), whose sum is σ = 48914712000. Its totient is φ = 5790044160.

The previous prime is 18467328049. The next prime is 18467328073. The reversal of 18467328072 is 27082376481.

It is a super-2 number, since 2×18467328072² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18467328073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679872 + ... + 706512.

It is an arithmetic number, because the mean of its divisors is an integer number (764292375).

Almost surely, 2^18467328072 is an apocalyptic number.

18467328072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18467328072 is an abundant number, since it is smaller than the sum of its proper divisors (30447383928).

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

18467328072 is a wasteful number, since it uses less digits than its factorization.

18467328072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28366 (or 28362 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 18467328072 in words is "eighteen billion, four hundred sixty-seven million, three hundred twenty-eight thousand, seventy-two".