90764413922 has 54 divisors (see below), whose sum is σ = 171567721539. Its totient is φ = 35891462880.

The previous prime is 90764413903. The next prime is 90764413931. The reversal of 90764413922 is 22931446709.

It can be written as a sum of positive squares in 5 ways, for example, as 24777593281 + 65986820641 = 157409^2 + 256879^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=213031.

It is a Duffinian number.

It is an unprimeable number.

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 in 26 ways as a sum of consecutive naturals, for example, 38770472 + ... + 38772812.

Almost surely, 2^90764413922 is an apocalyptic number.

90764413922 is a deficient number, since it is larger than the sum of its proper divisors (80803307617).

90764413922 is an equidigital number, since it uses as much as digits as its factorization.

90764413922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4724 (or 2363 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 90764413922 in words is "ninety billion, seven hundred sixty-four million, four hundred thirteen thousand, nine hundred twenty-two".