18206079888 has 80 divisors (see below), whose sum is σ = 47647575360. Its totient is φ = 5989827072.

The previous prime is 18206079821. The next prime is 18206079919. The reversal of 18206079888 is 88897060281.

It is a super-2 number, since 2×18206079888² (a number of 21 digits) contains 22 as substring.

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, 1146370 + ... + 1162142.

It is an arithmetic number, because the mean of its divisors is an integer number (595594692).

Almost surely, 2^18206079888 is an apocalyptic number.

It is an amenable number.

18206079888 is an abundant number, since it is smaller than the sum of its proper divisors (29441495472).

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

18206079888 is a wasteful number, since it uses less digits than its factorization.

18206079888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16096 (or 16090 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 57.

The spelling of 18206079888 in words is "eighteen billion, two hundred six million, seventy-nine thousand, eight hundred eighty-eight".