196126950557 has 2 divisors, whose sum is σ = 196126950558. Its totient is φ = 196126950556.

The previous prime is 196126950529. The next prime is 196126950563. The reversal of 196126950557 is 755059621691.

196126950557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174368045476 + 21758905081 = 417574^2 + 147509^2 .

It is a cyclic number.

It is not a de Polignac number, because 196126950557 - 2¹² = 196126946461 is a prime.

It is a super-2 number, since 2×196126950557² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196126950517) 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, 98063475278 + 98063475279.

It is an arithmetic number, because the mean of its divisors is an integer number (98063475279).

Almost surely, 2^196126950557 is an apocalyptic number.

It is an amenable number.

196126950557 is a deficient number, since it is larger than the sum of its proper divisors (1).

196126950557 is an equidigital number, since it uses as much as digits as its factorization.

196126950557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5103000, while the sum is 56.

The spelling of 196126950557 in words is "one hundred ninety-six billion, one hundred twenty-six million, nine hundred fifty thousand, five hundred fifty-seven".