199864332323 has 2 divisors, whose sum is σ = 199864332324. Its totient is φ = 199864332322.

The previous prime is 199864332287. The next prime is 199864332329. The reversal of 199864332323 is 323233468991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199864332323 - 2⁸ = 199864332067 is a prime.

It is a super-4 number, since 4×199864332323⁴ (a number of 46 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (199864332329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99932166161 + 99932166162.

It is an arithmetic number, because the mean of its divisors is an integer number (99932166162).

Almost surely, 2^199864332323 is an apocalyptic number.

199864332323 is a deficient number, since it is larger than the sum of its proper divisors (1).

199864332323 is an equidigital number, since it uses as much as digits as its factorization.

199864332323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5038848, while the sum is 53.

The spelling of 199864332323 in words is "one hundred ninety-nine billion, eight hundred sixty-four million, three hundred thirty-two thousand, three hundred twenty-three".