196126386805457 has 2 divisors, whose sum is σ = 196126386805458. Its totient is φ = 196126386805456.

The previous prime is 196126386805403. The next prime is 196126386805477. The reversal of 196126386805457 is 754508683621691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163053720024001 + 33072666781456 = 12769249^2 + 5750884^2 .

It is a cyclic number.

It is not a de Polignac number, because 196126386805457 - 2³² = 196122091838161 is a prime.

It is a super-3 number, since 3×196126386805457³ (a number of 44 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (196126386805477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98063193402728 + 98063193402729.

It is an arithmetic number, because the mean of its divisors is an integer number (98063193402729).

It is a 1-persistent number, because it is pandigital, but 2⋅196126386805457 = 392252773610914 is not.

Almost surely, 2^{196126386805457} is an apocalyptic number.

It is an amenable number.

196126386805457 is a deficient number, since it is larger than the sum of its proper divisors (1).

196126386805457 is an equidigital number, since it uses as much as digits as its factorization.

196126386805457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 522547200, while the sum is 71.

The spelling of 196126386805457 in words is "one hundred ninety-six trillion, one hundred twenty-six billion, three hundred eighty-six million, eight hundred five thousand, four hundred fifty-seven".