90838801604 has 12 divisors (see below), whose sum is σ = 159586456764. Its totient is φ = 45242671104.

The previous prime is 90838801579. The next prime is 90838801631. The reversal of 90838801604 is 40610883809.

It can be written as a sum of positive squares in 2 ways, for example, as 50826800704 + 40012000900 = 225448^2 + 200030^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44181269 + ... + 44183324.

It is an arithmetic number, because the mean of its divisors is an integer number (13298871397).

Almost surely, 2^90838801604 is an apocalyptic number.

It is an amenable number.

90838801604 is a deficient number, since it is larger than the sum of its proper divisors (68747655160).

90838801604 is a wasteful number, since it uses less digits than its factorization.

90838801604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88364854 (or 88364852 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The spelling of 90838801604 in words is "ninety billion, eight hundred thirty-eight million, eight hundred one thousand, six hundred four".