18150000072 has 64 divisors (see below), whose sum is σ = 45718020480. Its totient is φ = 6004357632.

The previous prime is 18150000053. The next prime is 18150000109. The reversal of 18150000072 is 27000005181.

It is a super-2 number, since 2×18150000072² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 18149999997 and 18150000051.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3890013 + ... + 3894675.

It is an arithmetic number, because the mean of its divisors is an integer number (714344070).

Almost surely, 2^18150000072 is an apocalyptic number.

18150000072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18150000072 is an abundant number, since it is smaller than the sum of its proper divisors (27568020408).

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

18150000072 is a wasteful number, since it uses less digits than its factorization.

18150000072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5862 (or 5858 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 24.

The spelling of 18150000072 in words is "eighteen billion, one hundred fifty million, seventy-two", and thus it is an aban number.