196694435191 has 2 divisors, whose sum is σ = 196694435192. Its totient is φ = 196694435190.

The previous prime is 196694435111. The next prime is 196694435239. The reversal of 196694435191 is 191534496691.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196694435191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196694435111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98347217595 + 98347217596.

It is an arithmetic number, because the mean of its divisors is an integer number (98347217596).

Almost surely, 2^196694435191 is an apocalyptic number.

196694435191 is a deficient number, since it is larger than the sum of its proper divisors (1).

196694435191 is an equidigital number, since it uses as much as digits as its factorization.

196694435191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6298560, while the sum is 58.

The spelling of 196694435191 in words is "one hundred ninety-six billion, six hundred ninety-four million, four hundred thirty-five thousand, one hundred ninety-one".