17977593823 has 12 divisors (see below), whose sum is σ = 21825494512. Its totient is φ = 14502931200.

The previous prime is 17977593797. The next prime is 17977593847. The reversal of 17977593823 is 32839577971.

It is not a de Polignac number, because 17977593823 - 2⁹ = 17977593311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17977593853) 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, 4441278 + ... + 4445323.

Almost surely, 2^17977593823 is an apocalyptic number.

17977593823 is a deficient number, since it is larger than the sum of its proper divisors (3847900689).

17977593823 is an equidigital number, since it uses as much as digits as its factorization.

17977593823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8886642 (or 8886625 counting only the distinct ones).

The product of its digits is 20003760, while the sum is 61.

The spelling of 17977593823 in words is "seventeen billion, nine hundred seventy-seven million, five hundred ninety-three thousand, eight hundred twenty-three".