196250617957 has 2 divisors, whose sum is σ = 196250617958. Its totient is φ = 196250617956.

The previous prime is 196250617933. The next prime is 196250617987. The reversal of 196250617957 is 759716052691.

196250617957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130591167876 + 65659450081 = 361374^2 + 256241^2 .

It is an emirp because it is prime and its reverse (759716052691) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196250617957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196250617907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98125308978 + 98125308979.

It is an arithmetic number, because the mean of its divisors is an integer number (98125308979).

Almost surely, 2^196250617957 is an apocalyptic number.

It is an amenable number.

196250617957 is a deficient number, since it is larger than the sum of its proper divisors (1).

196250617957 is an equidigital number, since it uses as much as digits as its factorization.

196250617957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7144200, while the sum is 58.

The spelling of 196250617957 in words is "one hundred ninety-six billion, two hundred fifty million, six hundred seventeen thousand, nine hundred fifty-seven".