199484052625129 has 2 divisors, whose sum is σ = 199484052625130. Its totient is φ = 199484052625128.

The previous prime is 199484052625127. The next prime is 199484052625153. The reversal of 199484052625129 is 921526250484991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157851206293225 + 41632846331904 = 12563885^2 + 6452352^2 .

It is a cyclic number.

It is not a de Polignac number, because 199484052625129 - 2¹ = 199484052625127 is a prime.

Together with 199484052625127, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (199484052625127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99742026312564 + 99742026312565.

It is an arithmetic number, because the mean of its divisors is an integer number (99742026312565).

Almost surely, 2^{199484052625129} is an apocalyptic number.

It is an amenable number.

199484052625129 is a deficient number, since it is larger than the sum of its proper divisors (1).

199484052625129 is an equidigital number, since it uses as much as digits as its factorization.

199484052625129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 111974400, while the sum is 67.

The spelling of 199484052625129 in words is "one hundred ninety-nine trillion, four hundred eighty-four billion, fifty-two million, six hundred twenty-five thousand, one hundred twenty-nine".