18113774177 has 8 divisors (see below), whose sum is σ = 18907186560. Its totient is φ = 17320849920.

The previous prime is 18113774153. The next prime is 18113774221. The reversal of 18113774177 is 77147731181.

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

It is a cyclic number.

It is not a de Polignac number, because 18113774177 - 2⁶ = 18113774113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18113774977) 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, 45152 + ... + 195617.

It is an arithmetic number, because the mean of its divisors is an integer number (2363398320).

Almost surely, 2^18113774177 is an apocalyptic number.

It is an amenable number.

18113774177 is a deficient number, since it is larger than the sum of its proper divisors (793412383).

18113774177 is a wasteful number, since it uses less digits than its factorization.

18113774177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244063.

The product of its digits is 230496, while the sum is 47.

The spelling of 18113774177 in words is "eighteen billion, one hundred thirteen million, seven hundred seventy-four thousand, one hundred seventy-seven".