18107112177 has 48 divisors (see below), whose sum is σ = 32621921280. Its totient is φ = 9402415200.

The previous prime is 18107112173. The next prime is 18107112187. The reversal of 18107112177 is 77121170181.

It is not a de Polignac number, because 18107112177 - 2² = 18107112173 is a prime.

It is a super-2 number, since 2×18107112177² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18107112173) 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 47 ways as a sum of consecutive naturals, for example, 2554324 + ... + 2561402.

It is an arithmetic number, because the mean of its divisors is an integer number (679623360).

Almost surely, 2^18107112177 is an apocalyptic number.

It is an amenable number.

18107112177 is a deficient number, since it is larger than the sum of its proper divisors (14514809103).

18107112177 is a wasteful number, since it uses less digits than its factorization.

18107112177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10794 (or 10791 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 36.

The spelling of 18107112177 in words is "eighteen billion, one hundred seven million, one hundred twelve thousand, one hundred seventy-seven".