198242313875423 has 2 divisors, whose sum is σ = 198242313875424. Its totient is φ = 198242313875422.

The previous prime is 198242313875371. The next prime is 198242313875467. The reversal of 198242313875423 is 324578313242891.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 198242313875423 - 2²⁰ = 198242312826847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198242313875483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99121156937711 + 99121156937712.

It is an arithmetic number, because the mean of its divisors is an integer number (99121156937712).

Almost surely, 2^{198242313875423} is an apocalyptic number.

198242313875423 is a deficient number, since it is larger than the sum of its proper divisors (1).

198242313875423 is an equidigital number, since it uses as much as digits as its factorization.

198242313875423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69672960, while the sum is 62.

The spelling of 198242313875423 in words is "one hundred ninety-eight trillion, two hundred forty-two billion, three hundred thirteen million, eight hundred seventy-five thousand, four hundred twenty-three".