18716002093 has 4 divisors (see below), whose sum is σ = 19319744128. Its totient is φ = 18112260060.

The previous prime is 18716002061. The next prime is 18716002099. The reversal of 18716002093 is 39020061781.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39020061781 = 12227 ⋅3191303.

It is a cyclic number.

It is not a de Polignac number, because 18716002093 - 2⁵ = 18716002061 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 (18716002099) 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 3 ways as a sum of consecutive naturals, for example, 301870971 + ... + 301871032.

It is an arithmetic number, because the mean of its divisors is an integer number (4829936032).

Almost surely, 2^18716002093 is an apocalyptic number.

It is an amenable number.

18716002093 is a deficient number, since it is larger than the sum of its proper divisors (603742035).

18716002093 is an equidigital number, since it uses as much as digits as its factorization.

18716002093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603742034.

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 18716002093 in words is "eighteen billion, seven hundred sixteen million, two thousand, ninety-three".