18739114899 has 4 divisors (see below), whose sum is σ = 24985486536. Its totient is φ = 12492743264.

The previous prime is 18739114897. The next prime is 18739114939. The reversal of 18739114899 is 99841193781.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18739114899 - 2¹ = 18739114897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18739114897) 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 3 ways as a sum of consecutive naturals, for example, 3123185814 + ... + 3123185819.

It is an arithmetic number, because the mean of its divisors is an integer number (6246371634).

Almost surely, 2^18739114899 is an apocalyptic number.

18739114899 is a deficient number, since it is larger than the sum of its proper divisors (6246371637).

18739114899 is an equidigital number, since it uses as much as digits as its factorization.

18739114899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6246371636.

The product of its digits is 3919104, while the sum is 60.

The spelling of 18739114899 in words is "eighteen billion, seven hundred thirty-nine million, one hundred fourteen thousand, eight hundred ninety-nine".