196393647587 has 2 divisors, whose sum is σ = 196393647588. Its totient is φ = 196393647586.

The previous prime is 196393647523. The next prime is 196393647677. The reversal of 196393647587 is 785746393691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 196393647587 - 2⁶ = 196393647523 is a prime.

It is not a weakly prime, because it can be changed into another prime (196393647287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98196823793 + 98196823794.

It is an arithmetic number, because the mean of its divisors is an integer number (98196823794).

Almost surely, 2^196393647587 is an apocalyptic number.

196393647587 is a deficient number, since it is larger than the sum of its proper divisors (1).

196393647587 is an equidigital number, since it uses as much as digits as its factorization.

196393647587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 205752960, while the sum is 68.

The spelling of 196393647587 in words is "one hundred ninety-six billion, three hundred ninety-three million, six hundred forty-seven thousand, five hundred eighty-seven".