8274989666 has 8 divisors (see below), whose sum is σ = 13142630700. Its totient is φ = 3894112768.

The previous prime is 8274989647. The next prime is 8274989677. The reversal of 8274989666 is 6669894728.

It can be written as a sum of positive squares in 2 ways, for example, as 7924738441 + 350251225 = 89021^2 + 18715^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121690991 + ... + 121691058.

Almost surely, 2^8274989666 is an apocalyptic number.

8274989666 is a deficient number, since it is larger than the sum of its proper divisors (4867641034).

8274989666 is a wasteful number, since it uses less digits than its factorization.

8274989666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243382068.

The product of its digits is 62705664, while the sum is 65.

The square root of 8274989666 is about 90966.9701924825. The cubic root of 8274989666 is about 2022.6581404610.

The spelling of 8274989666 in words is "eight billion, two hundred seventy-four million, nine hundred eighty-nine thousand, six hundred sixty-six".