199952772079 has 2 divisors, whose sum is σ = 199952772080. Its totient is φ = 199952772078.

The previous prime is 199952772077. The next prime is 199952772137. The reversal of 199952772079 is 970277259991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 199952772079 - 2¹ = 199952772077 is a prime.

It is a super-2 number, since 2×199952772079² (a number of 23 digits) contains 22 as substring.

Together with 199952772077, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199952772077) 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, 99976386039 + 99976386040.

It is an arithmetic number, because the mean of its divisors is an integer number (99976386040).

Almost surely, 2^199952772079 is an apocalyptic number.

199952772079 is a deficient number, since it is larger than the sum of its proper divisors (1).

199952772079 is an equidigital number, since it uses as much as digits as its factorization.

199952772079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45008460, while the sum is 67.

The spelling of 199952772079 in words is "one hundred ninety-nine billion, nine hundred fifty-two million, seven hundred seventy-two thousand, seventy-nine".