8444881690 has 64 divisors (see below), whose sum is σ = 17644988160. Its totient is φ = 2850278400.

The previous prime is 8444881681. The next prime is 8444881717. The reversal of 8444881690 is 961884448.

It is a super-2 number, since 2×8444881690² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1262194 + ... + 1268866.

It is an arithmetic number, because the mean of its divisors is an integer number (275702940).

Almost surely, 2^8444881690 is an apocalyptic number.

8444881690 is an abundant number, since it is smaller than the sum of its proper divisors (9200106470).

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

8444881690 is a wasteful number, since it uses less digits than its factorization.

8444881690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6967.

The product of its (nonzero) digits is 1769472, while the sum is 52.

The square root of 8444881690 is about 91896.0374009674. The cubic root of 8444881690 is about 2036.4067279716.

The spelling of 8444881690 in words is "eight billion, four hundred forty-four million, eight hundred eighty-one thousand, six hundred ninety".