18971088017 has 8 divisors (see below), whose sum is σ = 21683254656. Its totient is φ = 16259424192.

The previous prime is 18971087981. The next prime is 18971088029. The reversal of 18971088017 is 71088017981.

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 18971088017 - 2²⁴ = 18954310801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18971088217) 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, 41048 + ... + 199065.

It is an arithmetic number, because the mean of its divisors is an integer number (2710406832).

Almost surely, 2^18971088017 is an apocalyptic number.

It is an amenable number.

18971088017 is a deficient number, since it is larger than the sum of its proper divisors (2712166639).

18971088017 is a wasteful number, since it uses less digits than its factorization.

18971088017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251407.

The product of its (nonzero) digits is 225792, while the sum is 50.

The spelling of 18971088017 in words is "eighteen billion, nine hundred seventy-one million, eighty-eight thousand, seventeen".