196398791579 has 2 divisors, whose sum is σ = 196398791580. Its totient is φ = 196398791578.

The previous prime is 196398791531. The next prime is 196398791609. The reversal of 196398791579 is 975197893691.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 196398791579 - 2²⁴ = 196382014363 is a prime.

It is not a weakly prime, because it can be changed into another prime (196398731579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98199395789 + 98199395790.

It is an arithmetic number, because the mean of its divisors is an integer number (98199395790).

Almost surely, 2^196398791579 is an apocalyptic number.

196398791579 is a deficient number, since it is larger than the sum of its proper divisors (1).

196398791579 is an equidigital number, since it uses as much as digits as its factorization.

196398791579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 231472080, while the sum is 74.

The spelling of 196398791579 in words is "one hundred ninety-six billion, three hundred ninety-eight million, seven hundred ninety-one thousand, five hundred seventy-nine".