198379985376029 has 2 divisors, whose sum is σ = 198379985376030. Its totient is φ = 198379985376028.

The previous prime is 198379985375959. The next prime is 198379985376091. The reversal of 198379985376029 is 920673589973891.

198379985376029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197290059816004 + 1089925560025 = 14045998^2 + 1043995^2 .

It is a cyclic number.

It is not a de Polignac number, because 198379985376029 - 2¹² = 198379985371933 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198379985376329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99189992688014 + 99189992688015.

It is an arithmetic number, because the mean of its divisors is an integer number (99189992688015).

Almost surely, 2^{198379985376029} is an apocalyptic number.

It is an amenable number.

198379985376029 is a deficient number, since it is larger than the sum of its proper divisors (1).

198379985376029 is an equidigital number, since it uses as much as digits as its factorization.

198379985376029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11110659840, while the sum is 86.

The spelling of 198379985376029 in words is "one hundred ninety-eight trillion, three hundred seventy-nine billion, nine hundred eighty-five million, three hundred seventy-six thousand, twenty-nine".