8941443681 has 16 divisors (see below), whose sum is σ = 12559233600. Its totient is φ = 5642800128.

The previous prime is 8941443653. The next prime is 8941443689. The reversal of 8941443681 is 1863441498.

8941443681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8941443681 - 2²¹ = 8939346529 is a prime.

It is a super-2 number, since 2×8941443681² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8941443681.

It is not an unprimeable number, because it can be changed into a prime (8941443689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12625 + ... + 134321.

It is an arithmetic number, because the mean of its divisors is an integer number (784952100).

Almost surely, 2^8941443681 is an apocalyptic number.

It is an amenable number.

8941443681 is a deficient number, since it is larger than the sum of its proper divisors (3617789919).

8941443681 is a wasteful number, since it uses less digits than its factorization.

8941443681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123008.

The product of its digits is 663552, while the sum is 48.

The square root of 8941443681 is about 94559.2072777686. The cubic root of 8941443681 is about 2075.5628167783.

The spelling of 8941443681 in words is "eight billion, nine hundred forty-one million, four hundred forty-three thousand, six hundred eighty-one".