6686669282 has 4 divisors (see below), whose sum is σ = 10030003926. Its totient is φ = 3343334640.

The previous prime is 6686669239. The next prime is 6686669299. The reversal of 6686669282 is 2829666866.

It is a happy number.

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., 4966161841 + 1720507441 = 70471^2 + 41479^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1671667319 + ... + 1671667322.

Almost surely, 2^6686669282 is an apocalyptic number.

6686669282 is a deficient number, since it is larger than the sum of its proper divisors (3343334644).

6686669282 is a wasteful number, since it uses less digits than its factorization.

6686669282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3343334643.

The product of its digits is 17915904, while the sum is 59.

The square root of 6686669282 is about 81772.0568531818. The cubic root of 6686669282 is about 1883.9524964995.

The spelling of 6686669282 in words is "six billion, six hundred eighty-six million, six hundred sixty-nine thousand, two hundred eighty-two".