8666978370 has 32 divisors (see below), whose sum is σ = 20877523200. Its totient is φ = 2302663680.

The previous prime is 8666978339. The next prime is 8666978371. The reversal of 8666978370 is 738796668.

It is not an unprimeable number, because it can be changed into a prime (8666978371) 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, 524895 + ... + 541154.

It is an arithmetic number, because the mean of its divisors is an integer number (652422600).

Almost surely, 2^8666978370 is an apocalyptic number.

8666978370 is an abundant number, since it is smaller than the sum of its proper divisors (12210544830).

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

8666978370 is a wasteful number, since it uses less digits than its factorization.

8666978370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066330.

The product of its (nonzero) digits is 18289152, while the sum is 60.

The square root of 8666978370 is about 93096.6077255235. The cubic root of 8666978370 is about 2054.1046744775.

The spelling of 8666978370 in words is "eight billion, six hundred sixty-six million, nine hundred seventy-eight thousand, three hundred seventy".