6447717274 has 4 divisors (see below), whose sum is σ = 9671575914. Its totient is φ = 3223858636.

The previous prime is 6447717271. The next prime is 6447717319. The reversal of 6447717274 is 4727177446.

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., 5705536225 + 742181049 = 75535^2 + 27243^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (6447717271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1611929317 + ... + 1611929320.

Almost surely, 2^6447717274 is an apocalyptic number.

6447717274 is a deficient number, since it is larger than the sum of its proper divisors (3223858640).

6447717274 is a wasteful number, since it uses less digits than its factorization.

6447717274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223858639.

The product of its digits is 1843968, while the sum is 49.

The square root of 6447717274 is about 80297.6791320895. The cubic root of 6447717274 is about 1861.2383623290.

The spelling of 6447717274 in words is "six billion, four hundred forty-seven million, seven hundred seventeen thousand, two hundred seventy-four".