8256746672 has 10 divisors (see below), whose sum is σ = 15997446708. Its totient is φ = 4128373328.

The previous prime is 8256746633. The next prime is 8256746689. The reversal of 8256746672 is 2766476528.

It is a happy number.

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 as a sum of consecutive naturals, namely, 258023318 + ... + 258023349.

Almost surely, 2^8256746672 is an apocalyptic number.

It is an amenable number.

8256746672 is a deficient number, since it is larger than the sum of its proper divisors (7740700036).

8256746672 is a wasteful number, since it uses less digits than its factorization.

8256746672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516046675 (or 516046669 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 53.

The square root of 8256746672 is about 90866.6422401532. The cubic root of 8256746672 is about 2021.1706667161.

The spelling of 8256746672 in words is "eight billion, two hundred fifty-six million, seven hundred forty-six thousand, six hundred seventy-two".