18706005913 has 16 divisors (see below), whose sum is σ = 23827201920. Its totient is φ = 14296317696.

The previous prime is 18706005911. The next prime is 18706005953. The reversal of 18706005913 is 31950060781.

It is a cyclic number.

It is not a de Polignac number, because 18706005913 - 2¹ = 18706005911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18706005911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4134406 + ... + 4138927.

It is an arithmetic number, because the mean of its divisors is an integer number (1489200120).

Almost surely, 2^18706005913 is an apocalyptic number.

It is an amenable number.

18706005913 is a deficient number, since it is larger than the sum of its proper divisors (5121196007).

18706005913 is a wasteful number, since it uses less digits than its factorization.

18706005913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8273376.

The product of its (nonzero) digits is 45360, while the sum is 40.

The spelling of 18706005913 in words is "eighteen billion, seven hundred six million, five thousand, nine hundred thirteen".