17966875923 has 12 divisors (see below), whose sum is σ = 26913345368. Its totient is φ = 11977917120.

The previous prime is 17966875919. The next prime is 17966875943. The reversal of 17966875923 is 32957866971.

It is not a de Polignac number, because 17966875923 - 2² = 17966875919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17966875943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36968638 + ... + 36969123.

Almost surely, 2^17966875923 is an apocalyptic number.

17966875923 is a deficient number, since it is larger than the sum of its proper divisors (8946469445).

17966875923 is an frugal number, since it uses more digits than its factorization.

17966875923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73937776 (or 73937764 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 63.

The spelling of 17966875923 in words is "seventeen billion, nine hundred sixty-six million, eight hundred seventy-five thousand, nine hundred twenty-three".