8168889706 has 4 divisors (see below), whose sum is σ = 12253334562. Its totient is φ = 4084444852.

The previous prime is 8168889689. The next prime is 8168889713. The reversal of 8168889706 is 6079888618.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4999762681 + 3169127025 = 70709^2 + 56295^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2042222425 + ... + 2042222428.

Almost surely, 2^8168889706 is an apocalyptic number.

8168889706 is a deficient number, since it is larger than the sum of its proper divisors (4084444856).

8168889706 is a wasteful number, since it uses less digits than its factorization.

8168889706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4084444855.

The product of its (nonzero) digits is 9289728, while the sum is 61.

The square root of 8168889706 is about 90381.9102807636. The cubic root of 8168889706 is about 2013.9762469229.

The spelling of 8168889706 in words is "eight billion, one hundred sixty-eight million, eight hundred eighty-nine thousand, seven hundred six".