18016792917 has 8 divisors (see below), whose sum is σ = 24475643424. Its totient is φ = 11784568848.

The previous prime is 18016792903. The next prime is 18016792943. The reversal of 18016792917 is 71929761081.

It is a happy number.

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

It is not a de Polignac number, because 18016792917 - 2¹⁰ = 18016791893 is a prime.

It is a super-2 number, since 2×18016792917² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18016792917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18016742917) 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, 56656423 + ... + 56656740.

It is an arithmetic number, because the mean of its divisors is an integer number (3059455428).

Almost surely, 2^18016792917 is an apocalyptic number.

It is an amenable number.

18016792917 is a deficient number, since it is larger than the sum of its proper divisors (6458850507).

18016792917 is a wasteful number, since it uses less digits than its factorization.

18016792917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113313219.

The product of its (nonzero) digits is 381024, while the sum is 51.

The spelling of 18016792917 in words is "eighteen billion, sixteen million, seven hundred ninety-two thousand, nine hundred seventeen".