8861512868 has 48 divisors (see below), whose sum is σ = 17051776560. Its totient is φ = 4004242944.

The previous prime is 8861512867. The next prime is 8861512889. The reversal of 8861512868 is 8682151688.

It can be written as a sum of positive squares in 8 ways, for example, as 102050404 + 8759462464 = 10102^2 + 93592^2 .

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (8861512867) 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, 1399646 + ... + 1405962.

It is an arithmetic number, because the mean of its divisors is an integer number (355245345).

Almost surely, 2^8861512868 is an apocalyptic number.

It is an amenable number.

8861512868 is a deficient number, since it is larger than the sum of its proper divisors (8190263692).

8861512868 is a wasteful number, since it uses less digits than its factorization.

8861512868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6896 (or 6894 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 53.

The square root of 8861512868 is about 94135.6089266968. The cubic root of 8861512868 is about 2069.3595588492.

The spelling of 8861512868 in words is "eight billion, eight hundred sixty-one million, five hundred twelve thousand, eight hundred sixty-eight".