18451298879 has 8 divisors (see below), whose sum is σ = 20150498592. Its totient is φ = 16792080480.

The previous prime is 18451298851. The next prime is 18451298893. The reversal of 18451298879 is 97889215481.

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

It is a cyclic number.

It is not a de Polignac number, because 18451298879 - 2²⁰ = 18450250303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18451298479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9994364 + ... + 9996209.

It is an arithmetic number, because the mean of its divisors is an integer number (2518812324).

Almost surely, 2^18451298879 is an apocalyptic number.

18451298879 is a deficient number, since it is larger than the sum of its proper divisors (1699199713).

18451298879 is a wasteful number, since it uses less digits than its factorization.

18451298879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19990657.

The product of its digits is 11612160, while the sum is 62.

The spelling of 18451298879 in words is "eighteen billion, four hundred fifty-one million, two hundred ninety-eight thousand, eight hundred seventy-nine".