196468431791 has 2 divisors, whose sum is σ = 196468431792. Its totient is φ = 196468431790.

The previous prime is 196468431739. The next prime is 196468431799. The reversal of 196468431791 is 197134864691.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 196468431791 - 2⁶ = 196468431727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 196468431791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196468431799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98234215895 + 98234215896.

It is an arithmetic number, because the mean of its divisors is an integer number (98234215896).

Almost surely, 2^196468431791 is an apocalyptic number.

196468431791 is a deficient number, since it is larger than the sum of its proper divisors (1).

196468431791 is an equidigital number, since it uses as much as digits as its factorization.

196468431791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 59.

The spelling of 196468431791 in words is "one hundred ninety-six billion, four hundred sixty-eight million, four hundred thirty-one thousand, seven hundred ninety-one".