8640047792 has 40 divisors (see below), whose sum is σ = 17419807680. Its totient is φ = 4148020800.

The previous prime is 8640047761. The next prime is 8640047797. The reversal of 8640047792 is 2977400468.

It is not an unprimeable number, because it can be changed into a prime (8640047797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65834 + ... + 147017.

It is an arithmetic number, because the mean of its divisors is an integer number (435495192).

Almost surely, 2^8640047792 is an apocalyptic number.

It is an amenable number.

8640047792 is an abundant number, since it is smaller than the sum of its proper divisors (8779759888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8640047792 is a wasteful number, since it uses less digits than its factorization.

8640047792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212961 (or 212955 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 8640047792 is about 92951.8573886504. The cubic root of 8640047792 is about 2051.9749194852.

The spelling of 8640047792 in words is "eight billion, six hundred forty million, forty-seven thousand, seven hundred ninety-two".