90043104049 has 2 divisors, whose sum is σ = 90043104050. Its totient is φ = 90043104048.

The previous prime is 90043104017. The next prime is 90043104061. The reversal of 90043104049 is 94040134009.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65466898225 + 24576205824 = 255865^2 + 156768^2 .

It is a cyclic number.

It is not a de Polignac number, because 90043104049 - 2⁵ = 90043104017 is a prime.

It is not a weakly prime, because it can be changed into another prime (90043104149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45021552024 + 45021552025.

It is an arithmetic number, because the mean of its divisors is an integer number (45021552025).

Almost surely, 2^90043104049 is an apocalyptic number.

It is an amenable number.

90043104049 is a deficient number, since it is larger than the sum of its proper divisors (1).

90043104049 is an equidigital number, since it uses as much as digits as its factorization.

90043104049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 90043104049 in words is "ninety billion, forty-three million, one hundred four thousand, forty-nine".