8718427444 has 6 divisors (see below), whose sum is σ = 15257248034. Its totient is φ = 4359213720.

The previous prime is 8718427433. The next prime is 8718427453. The reversal of 8718427444 is 4447248178.

It can be written as a sum of positive squares in only one way, i.e., 7508222500 + 1210204944 = 86650^2 + 34788^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1089803427 + ... + 1089803434.

Almost surely, 2^8718427444 is an apocalyptic number.

It is an amenable number.

8718427444 is a deficient number, since it is larger than the sum of its proper divisors (6538820590).

8718427444 is a wasteful number, since it uses less digits than its factorization.

8718427444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179606865 (or 2179606863 counting only the distinct ones).

The product of its digits is 1605632, while the sum is 49.

The square root of 8718427444 is about 93372.5197475146. The cubic root of 8718427444 is about 2058.1611960286.

The spelling of 8718427444 in words is "eight billion, seven hundred eighteen million, four hundred twenty-seven thousand, four hundred forty-four".