17798328923 has 2 divisors, whose sum is σ = 17798328924. Its totient is φ = 17798328922.

The previous prime is 17798328917. The next prime is 17798329001. The reversal of 17798328923 is 32982389771.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 17798328923 - 2³⁴ = 618459739 is a prime.

It is not a weakly prime, because it can be changed into another prime (17798328913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8899164461 + 8899164462.

It is an arithmetic number, because the mean of its divisors is an integer number (8899164462).

Almost surely, 2^17798328923 is an apocalyptic number.

17798328923 is a deficient number, since it is larger than the sum of its proper divisors (1).

17798328923 is an equidigital number, since it uses as much as digits as its factorization.

17798328923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9144576, while the sum is 59.

The spelling of 17798328923 in words is "seventeen billion, seven hundred ninety-eight million, three hundred twenty-eight thousand, nine hundred twenty-three".