90089295091 has 2 divisors, whose sum is σ = 90089295092. Its totient is φ = 90089295090.

The previous prime is 90089295089. The next prime is 90089295097. The reversal of 90089295091 is 19059298009.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90089295091 - 2¹ = 90089295089 is a prime.

Together with 90089295089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (90089295097) 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, 45044647545 + 45044647546.

It is an arithmetic number, because the mean of its divisors is an integer number (45044647546).

Almost surely, 2^90089295091 is an apocalyptic number.

90089295091 is a deficient number, since it is larger than the sum of its proper divisors (1).

90089295091 is an equidigital number, since it uses as much as digits as its factorization.

90089295091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 524880, while the sum is 52.

The spelling of 90089295091 in words is "ninety billion, eighty-nine million, two hundred ninety-five thousand, ninety-one".