90849734730823 has 2 divisors, whose sum is σ = 90849734730824. Its totient is φ = 90849734730822.

The previous prime is 90849734730791. The next prime is 90849734730829. The reversal of 90849734730823 is 32803743794809.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90849734730823 - 2⁵ = 90849734730791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90849734730829) 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, 45424867365411 + 45424867365412.

It is an arithmetic number, because the mean of its divisors is an integer number (45424867365412).

Almost surely, 2^{90849734730823} is an apocalyptic number.

90849734730823 is a deficient number, since it is larger than the sum of its proper divisors (1).

90849734730823 is an equidigital number, since it uses as much as digits as its factorization.

90849734730823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 219469824, while the sum is 67.

The spelling of 90849734730823 in words is "ninety trillion, eight hundred forty-nine billion, seven hundred thirty-four million, seven hundred thirty thousand, eight hundred twenty-three".