199704959929 has 2 divisors, whose sum is σ = 199704959930. Its totient is φ = 199704959928.

The previous prime is 199704959903. The next prime is 199704960019. The reversal of 199704959929 is 929959407991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157609000000 + 42095959929 = 397000^2 + 205173^2 .

It is a cyclic number.

It is not a de Polignac number, because 199704959929 - 2¹³ = 199704951737 is a prime.

It is not a weakly prime, because it can be changed into another prime (199704954929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99852479964 + 99852479965.

It is an arithmetic number, because the mean of its divisors is an integer number (99852479965).

Almost surely, 2^199704959929 is an apocalyptic number.

It is an amenable number.

199704959929 is a deficient number, since it is larger than the sum of its proper divisors (1).

199704959929 is an equidigital number, since it uses as much as digits as its factorization.

199704959929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 148803480, while the sum is 73.

The spelling of 199704959929 in words is "one hundred ninety-nine billion, seven hundred four million, nine hundred fifty-nine thousand, nine hundred twenty-nine".