18498590879 has 8 divisors (see below), whose sum is σ = 18522816000. Its totient is φ = 18474384600.

The previous prime is 18498590867. The next prime is 18498590881. The reversal of 18498590879 is 97809589481.

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 18498590879 - 2¹² = 18498586783 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 (18498590809) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3191474 + ... + 3197264.

It is an arithmetic number, because the mean of its divisors is an integer number (2315352000).

Almost surely, 2^18498590879 is an apocalyptic number.

18498590879 is a deficient number, since it is larger than the sum of its proper divisors (24225121).

18498590879 is a wasteful number, since it uses less digits than its factorization.

18498590879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9421.

The product of its (nonzero) digits is 52254720, while the sum is 68.

The spelling of 18498590879 in words is "eighteen billion, four hundred ninety-eight million, five hundred ninety thousand, eight hundred seventy-nine".