8915220844 has 6 divisors (see below), whose sum is σ = 15601636484. Its totient is φ = 4457610420.

The previous prime is 8915220841. The next prime is 8915220911. The reversal of 8915220844 is 4480225198.

8915220844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 8915220844.

It is not an unprimeable number, because it can be changed into a prime (8915220841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1114402602 + ... + 1114402609.

Almost surely, 2^8915220844 is an apocalyptic number.

It is an amenable number.

8915220844 is a deficient number, since it is larger than the sum of its proper divisors (6686415640).

8915220844 is a wasteful number, since it uses less digits than its factorization.

8915220844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228805215 (or 2228805213 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 8915220844 is about 94420.4471711504. The cubic root of 8915220844 is about 2073.5318084784.

The spelling of 8915220844 in words is "eight billion, nine hundred fifteen million, two hundred twenty thousand, eight hundred forty-four".