90126445922 has 6 divisors (see below), whose sum is σ = 135190305729. Its totient is φ = 45063010680.

The previous prime is 90126445909. The next prime is 90126445933. The reversal of 90126445922 is 22954462109.

It can be written as a sum of positive squares in 2 ways, for example, as 60418131601 + 29708314321 = 245801^2 + 172361^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=212281.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 318422 + ... + 530702.

Almost surely, 2^90126445922 is an apocalyptic number.

90126445922 is a deficient number, since it is larger than the sum of its proper divisors (45063859807).

90126445922 is an frugal number, since it uses more digits than its factorization.

90126445922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424564 (or 212283 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 90126445922 in words is "ninety billion, one hundred twenty-six million, four hundred forty-five thousand, nine hundred twenty-two".