18107072798 has 8 divisors (see below), whose sum is σ = 27161203608. Its totient is φ = 9053338264.

The previous prime is 18107072773. The next prime is 18107072807. The reversal of 18107072798 is 89727070181.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 79640 + ... + 206292.

It is an arithmetic number, because the mean of its divisors is an integer number (3395150451).

Almost surely, 2^18107072798 is an apocalyptic number.

18107072798 is a deficient number, since it is larger than the sum of its proper divisors (9054130810).

18107072798 is a wasteful number, since it uses less digits than its factorization.

18107072798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198138.

The product of its (nonzero) digits is 395136, while the sum is 50.

The spelling of 18107072798 in words is "eighteen billion, one hundred seven million, seventy-two thousand, seven hundred ninety-eight".