8861695820 has 12 divisors (see below), whose sum is σ = 18609561264. Its totient is φ = 3544678320.

The previous prime is 8861695781. The next prime is 8861695837. The reversal of 8861695820 is 285961688.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221542376 + ... + 221542415.

It is an arithmetic number, because the mean of its divisors is an integer number (1550796772).

Almost surely, 2^8861695820 is an apocalyptic number.

It is an amenable number.

8861695820 is an abundant number, since it is smaller than the sum of its proper divisors (9747865444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8861695820 is a wasteful number, since it uses less digits than its factorization.

8861695820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443084800 (or 443084798 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 53.

The square root of 8861695820 is about 94136.5806687283. The cubic root of 8861695820 is about 2069.3737998661.

The spelling of 8861695820 in words is "eight billion, eight hundred sixty-one million, six hundred ninety-five thousand, eight hundred twenty".