18701879458 has 8 divisors (see below), whose sum is σ = 28092839580. Its totient is φ = 9337599600.

The previous prime is 18701879419. The next prime is 18701879477. The reversal of 18701879458 is 85497810781.

It can be written as a sum of positive squares in 2 ways, for example, as 15823878849 + 2878000609 = 125793^2 + 53647^2 .

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

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, 6668313 + ... + 6671116.

Almost surely, 2^18701879458 is an apocalyptic number.

18701879458 is a deficient number, since it is larger than the sum of its proper divisors (9390960122).

18701879458 is a wasteful number, since it uses less digits than its factorization.

18701879458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13340132.

The product of its (nonzero) digits is 4515840, while the sum is 58.

The spelling of 18701879458 in words is "eighteen billion, seven hundred one million, eight hundred seventy-nine thousand, four hundred fifty-eight".