18167079488 has 28 divisors (see below), whose sum is σ = 36098017212. Its totient is φ = 9071516160.

The previous prime is 18167079473. The next prime is 18167079499. The reversal of 18167079488 is 88497076181.

It can be written as a sum of positive squares in 2 ways, for example, as 9657385984 + 8509693504 = 98272^2 + 92248^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139043 + ... + 235938.

Almost surely, 2^18167079488 is an apocalyptic number.

It is an amenable number.

18167079488 is a deficient number, since it is larger than the sum of its proper divisors (17930937724).

18167079488 is an equidigital number, since it uses as much as digits as its factorization.

18167079488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375750 (or 375740 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 59.

The spelling of 18167079488 in words is "eighteen billion, one hundred sixty-seven million, seventy-nine thousand, four hundred eighty-eight".