6631385922 has 96 divisors (see below), whose sum is σ = 17074721664. Its totient is φ = 1889568000.

The previous prime is 6631385869. The next prime is 6631385933. The reversal of 6631385922 is 2295831366.

6631385922 is a `hidden beast` number, since 6 + 631 + 3 + 8 + 5 + 9 + 2 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1361772 + ... + 1366632.

It is an arithmetic number, because the mean of its divisors is an integer number (177861684).

Almost surely, 2^6631385922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6631385922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8537360832).

6631385922 is an abundant number, since it is smaller than the sum of its proper divisors (10443335742).

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

6631385922 is a wasteful number, since it uses less digits than its factorization.

6631385922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5286 (or 5274 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 6631385922 is about 81433.3219388722. The cubic root of 6631385922 is about 1878.7461386130.

The spelling of 6631385922 in words is "six billion, six hundred thirty-one million, three hundred eighty-five thousand, nine hundred twenty-two".