196368924649 has 2 divisors, whose sum is σ = 196368924650. Its totient is φ = 196368924648.

The previous prime is 196368924643. The next prime is 196368924701. The reversal of 196368924649 is 946429863691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140349135424 + 56019789225 = 374632^2 + 236685^2 .

It is a cyclic number.

It is not a de Polignac number, because 196368924649 - 2¹⁵ = 196368891881 is a prime.

It is not a weakly prime, because it can be changed into another prime (196368924643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98184462324 + 98184462325.

It is an arithmetic number, because the mean of its divisors is an integer number (98184462325).

Almost surely, 2^196368924649 is an apocalyptic number.

It is an amenable number.

196368924649 is a deficient number, since it is larger than the sum of its proper divisors (1).

196368924649 is an equidigital number, since it uses as much as digits as its factorization.

196368924649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120932352, while the sum is 67.

The spelling of 196368924649 in words is "one hundred ninety-six billion, three hundred sixty-eight million, nine hundred twenty-four thousand, six hundred forty-nine".