18508888017 has 32 divisors (see below), whose sum is σ = 27713612160. Its totient is φ = 12207585600.

The previous prime is 18508887979. The next prime is 18508888037. The reversal of 18508888017 is 71088880581.

It is not a de Polignac number, because 18508888017 - 2¹⁹ = 18508363729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18508888037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6033318 + ... + 6036384.

It is an arithmetic number, because the mean of its divisors is an integer number (866050380).

Almost surely, 2^18508888017 is an apocalyptic number.

It is an amenable number.

18508888017 is a deficient number, since it is larger than the sum of its proper divisors (9204724143).

18508888017 is a wasteful number, since it uses less digits than its factorization.

18508888017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5390 (or 5384 counting only the distinct ones).

The product of its (nonzero) digits is 1146880, while the sum is 54.

The spelling of 18508888017 in words is "eighteen billion, five hundred eight million, eight hundred eighty-eight thousand, seventeen".