17799886945 has 24 divisors (see below), whose sum is σ = 23286219840. Its totient is φ = 13025194560.

The previous prime is 17799886901. The next prime is 17799886961. The reversal of 17799886945 is 54968899771.

It is not a de Polignac number, because 17799886945 - 2¹⁹ = 17799362657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31501 + ... + 191290.

It is an arithmetic number, because the mean of its divisors is an integer number (970259160).

Almost surely, 2^17799886945 is an apocalyptic number.

It is an amenable number.

17799886945 is a deficient number, since it is larger than the sum of its proper divisors (5486332895).

17799886945 is a wasteful number, since it uses less digits than its factorization.

17799886945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222873 (or 222844 counting only the distinct ones).

The product of its digits is 274337280, while the sum is 73.

The spelling of 17799886945 in words is "seventeen billion, seven hundred ninety-nine million, eight hundred eighty-six thousand, nine hundred forty-five".