890025327990 has 48 divisors (see below), whose sum is σ = 2314112398416. Its totient is φ = 237335313600.

The previous prime is 890025327959. The next prime is 890025328019. The reversal of 890025327990 is 99723520098.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8763300 + ... + 8864280.

It is an arithmetic number, because the mean of its divisors is an integer number (48210674967).

Almost surely, 2^890025327990 is an apocalyptic number.

890025327990 is an abundant number, since it is smaller than the sum of its proper divisors (1424087070426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

890025327990 is a wasteful number, since it uses less digits than its factorization.

890025327990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198925 (or 198922 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 54.

The spelling of 890025327990 in words is "eight hundred ninety billion, twenty-five million, three hundred twenty-seven thousand, nine hundred ninety".