8831221863 has 16 divisors (see below), whose sum is σ = 12550185216. Its totient is φ = 5504457600.

The previous prime is 8831221853. The next prime is 8831221871. The reversal of 8831221863 is 3681221388.

It is not a de Polignac number, because 8831221863 - 2⁶ = 8831221799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8831221843) 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, 565681 + ... + 581082.

It is an arithmetic number, because the mean of its divisors is an integer number (784386576).

Almost surely, 2^8831221863 is an apocalyptic number.

8831221863 is a deficient number, since it is larger than the sum of its proper divisors (3718963353).

8831221863 is a wasteful number, since it uses less digits than its factorization.

8831221863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146934.

The product of its digits is 110592, while the sum is 42.

The square root of 8831221863 is about 93974.5809408055. The cubic root of 8831221863 is about 2066.9989935604.

The spelling of 8831221863 in words is "eight billion, eight hundred thirty-one million, two hundred twenty-one thousand, eight hundred sixty-three".