91340298799637 has 2 divisors, whose sum is σ = 91340298799638. Its totient is φ = 91340298799636.

The previous prime is 91340298799609. The next prime is 91340298799747. The reversal of 91340298799637 is 73699789204319.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75324502902961 + 16015795896676 = 8678969^2 + 4001974^2 .

It is a cyclic number.

It is not a de Polignac number, because 91340298799637 - 2¹⁸ = 91340298537493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91340298769637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45670149399818 + 45670149399819.

It is an arithmetic number, because the mean of its divisors is an integer number (45670149399819).

Almost surely, 2^{91340298799637} is an apocalyptic number.

It is an amenable number.

91340298799637 is a deficient number, since it is larger than the sum of its proper divisors (1).

91340298799637 is an equidigital number, since it uses as much as digits as its factorization.

91340298799637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1111065984, while the sum is 77.

The spelling of 91340298799637 in words is "ninety-one trillion, three hundred forty billion, two hundred ninety-eight million, seven hundred ninety-nine thousand, six hundred thirty-seven".