18380906113 has 8 divisors (see below), whose sum is σ = 19207849536. Its totient is φ = 17556277200.

The previous prime is 18380906111. The next prime is 18380906129. The reversal of 18380906113 is 31160908381.

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

It is not a de Polignac number, because 18380906113 - 2¹ = 18380906111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18380906111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562378 + ... + 594163.

It is an arithmetic number, because the mean of its divisors is an integer number (2400981192).

Almost surely, 2^18380906113 is an apocalyptic number.

It is an amenable number.

18380906113 is a deficient number, since it is larger than the sum of its proper divisors (826943423).

18380906113 is a wasteful number, since it uses less digits than its factorization.

18380906113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157255.

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 18380906113 in words is "eighteen billion, three hundred eighty million, nine hundred six thousand, one hundred thirteen".