990224324425 has 12 divisors (see below), whose sum is σ = 1403289328576. Its totient is φ = 679010965200.

The previous prime is 990224324389. The next prime is 990224324437. The reversal of 990224324425 is 524423422099.

It is not a de Polignac number, because 990224324425 - 2¹⁷ = 990224193353 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2829212181 + ... + 2829212530.

Almost surely, 2^990224324425 is an apocalyptic number.

It is an amenable number.

990224324425 is a deficient number, since it is larger than the sum of its proper divisors (413065004151).

990224324425 is a wasteful number, since it uses less digits than its factorization.

990224324425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5658424728 (or 5658424723 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 990224324425 in words is "nine hundred ninety billion, two hundred twenty-four million, three hundred twenty-four thousand, four hundred twenty-five".