90964595473 has 2 divisors, whose sum is σ = 90964595474. Its totient is φ = 90964595472.

The previous prime is 90964595461. The next prime is 90964595609. The reversal of 90964595473 is 37459546909.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55777213584 + 35187381889 = 236172^2 + 187583^2 .

It is a cyclic number.

It is not a de Polignac number, because 90964595473 - 2⁵ = 90964595441 is a prime.

It is not a weakly prime, because it can be changed into another prime (90964595873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45482297736 + 45482297737.

It is an arithmetic number, because the mean of its divisors is an integer number (45482297737).

Almost surely, 2^90964595473 is an apocalyptic number.

It is an amenable number.

90964595473 is a deficient number, since it is larger than the sum of its proper divisors (1).

90964595473 is an equidigital number, since it uses as much as digits as its factorization.

90964595473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36741600, while the sum is 61.

The spelling of 90964595473 in words is "ninety billion, nine hundred sixty-four million, five hundred ninety-five thousand, four hundred seventy-three".