90417199205023 has 2 divisors, whose sum is σ = 90417199205024. Its totient is φ = 90417199205022.

The previous prime is 90417199204993. The next prime is 90417199205071. The reversal of 90417199205023 is 32050299171409.

It is a weak prime.

It is an emirp because it is prime and its reverse (32050299171409) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90417199205023 - 2²¹ = 90417197107871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90417199205093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45208599602511 + 45208599602512.

It is an arithmetic number, because the mean of its divisors is an integer number (45208599602512).

Almost surely, 2^{90417199205023} is an apocalyptic number.

90417199205023 is a deficient number, since it is larger than the sum of its proper divisors (1).

90417199205023 is an equidigital number, since it uses as much as digits as its factorization.

90417199205023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1224720, while the sum is 52.

The spelling of 90417199205023 in words is "ninety trillion, four hundred seventeen billion, one hundred ninety-nine million, two hundred five thousand, twenty-three".