8678821612 has 24 divisors (see below), whose sum is σ = 15392179712. Its totient is φ = 4281368400.

The previous prime is 8678821609. The next prime is 8678821621. The reversal of 8678821612 is 2161288768.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72787 + ... + 150517.

Almost surely, 2^8678821612 is an apocalyptic number.

It is an amenable number.

8678821612 is a deficient number, since it is larger than the sum of its proper divisors (6713358100).

8678821612 is a wasteful number, since it uses less digits than its factorization.

8678821612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78109 (or 78107 counting only the distinct ones).

The product of its digits is 516096, while the sum is 49.

The square root of 8678821612 is about 93160.1932801773. The cubic root of 8678821612 is about 2055.0398787753.

The spelling of 8678821612 in words is "eight billion, six hundred seventy-eight million, eight hundred twenty-one thousand, six hundred twelve".