91124296082177 has 2 divisors, whose sum is σ = 91124296082178. Its totient is φ = 91124296082176.

The previous prime is 91124296082059. The next prime is 91124296082219. The reversal of 91124296082177 is 77128069242119.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49331575038736 + 41792721043441 = 7023644^2 + 6464729^2 .

It is a cyclic number.

It is not a de Polignac number, because 91124296082177 - 2²² = 91124291887873 is a prime.

It is not a weakly prime, because it can be changed into another prime (91124296084177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45562148041088 + 45562148041089.

It is an arithmetic number, because the mean of its divisors is an integer number (45562148041089).

Almost surely, 2^{91124296082177} is an apocalyptic number.

It is an amenable number.

91124296082177 is a deficient number, since it is larger than the sum of its proper divisors (1).

91124296082177 is an equidigital number, since it uses as much as digits as its factorization.

91124296082177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6096384, while the sum is 59.

The spelling of 91124296082177 in words is "ninety-one trillion, one hundred twenty-four billion, two hundred ninety-six million, eighty-two thousand, one hundred seventy-seven".