90321825844 has 12 divisors (see below), whose sum is σ = 158065509924. Its totient is φ = 45160251584.

The previous prime is 90321825821. The next prime is 90321825887. The reversal of 90321825844 is 44852812309.

It can be written as a sum of positive squares in 2 ways, for example, as 42102936100 + 48218889744 = 205190^2 + 219588^2 .

It is a junction number, because it is equal to n+sod(n) for n = 90321825794 and 90321825803.

It is a congruent number.

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, 268362 + ... + 502654.

It is an arithmetic number, because the mean of its divisors is an integer number (13172125827).

Almost surely, 2^90321825844 is an apocalyptic number.

It is an amenable number.

90321825844 is a deficient number, since it is larger than the sum of its proper divisors (67743684080).

90321825844 is a wasteful number, since it uses less digits than its factorization.

90321825844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330674 (or 330672 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 90321825844 in words is "ninety billion, three hundred twenty-one million, eight hundred twenty-five thousand, eight hundred forty-four".