196300121957 has 2 divisors, whose sum is σ = 196300121958. Its totient is φ = 196300121956.

The previous prime is 196300121917. The next prime is 196300121971. The reversal of 196300121957 is 759121003691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108900660001 + 87399461956 = 330001^2 + 295634^2 .

It is a cyclic number.

It is not a de Polignac number, because 196300121957 - 2²⁰ = 196299073381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196300121917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98150060978 + 98150060979.

It is an arithmetic number, because the mean of its divisors is an integer number (98150060979).

Almost surely, 2^196300121957 is an apocalyptic number.

It is an amenable number.

196300121957 is a deficient number, since it is larger than the sum of its proper divisors (1).

196300121957 is an equidigital number, since it uses as much as digits as its factorization.

196300121957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 44.

The spelling of 196300121957 in words is "one hundred ninety-six billion, three hundred million, one hundred twenty-one thousand, nine hundred fifty-seven".