90493859441 has 2 divisors, whose sum is σ = 90493859442. Its totient is φ = 90493859440.

The previous prime is 90493859431. The next prime is 90493859531. The reversal of 90493859441 is 14495839409.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65617945600 + 24875913841 = 256160^2 + 157721^2 .

It is a cyclic number.

It is not a de Polignac number, because 90493859441 - 2²² = 90489665137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (90493859431) 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, 45246929720 + 45246929721.

It is an arithmetic number, because the mean of its divisors is an integer number (45246929721).

Almost surely, 2^90493859441 is an apocalyptic number.

It is an amenable number.

90493859441 is a deficient number, since it is larger than the sum of its proper divisors (1).

90493859441 is an equidigital number, since it uses as much as digits as its factorization.

90493859441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 90493859441 in words is "ninety billion, four hundred ninety-three million, eight hundred fifty-nine thousand, four hundred forty-one".