196776976213 has 2 divisors, whose sum is σ = 196776976214. Its totient is φ = 196776976212.

The previous prime is 196776976177. The next prime is 196776976243. The reversal of 196776976213 is 312679677691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130482055729 + 66294920484 = 361223^2 + 257478^2 .

It is a cyclic number.

It is not a de Polignac number, because 196776976213 - 2³³ = 188187041621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196776976243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98388488106 + 98388488107.

It is an arithmetic number, because the mean of its divisors is an integer number (98388488107).

Almost surely, 2^196776976213 is an apocalyptic number.

It is an amenable number.

196776976213 is a deficient number, since it is larger than the sum of its proper divisors (1).

196776976213 is an equidigital number, since it uses as much as digits as its factorization.

196776976213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36006768, while the sum is 64.

The spelling of 196776976213 in words is "one hundred ninety-six billion, seven hundred seventy-six million, nine hundred seventy-six thousand, two hundred thirteen".