199273425863 has 2 divisors, whose sum is σ = 199273425864. Its totient is φ = 199273425862.

The previous prime is 199273425829. The next prime is 199273425881. The reversal of 199273425863 is 368524372991.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199273425863 - 2⁸ = 199273425607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199273422863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99636712931 + 99636712932.

It is an arithmetic number, because the mean of its divisors is an integer number (99636712932).

Almost surely, 2^199273425863 is an apocalyptic number.

199273425863 is a deficient number, since it is larger than the sum of its proper divisors (1).

199273425863 is an equidigital number, since it uses as much as digits as its factorization.

199273425863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19595520, while the sum is 59.

The spelling of 199273425863 in words is "one hundred ninety-nine billion, two hundred seventy-three million, four hundred twenty-five thousand, eight hundred sixty-three".