7647223868 has 24 divisors (see below), whose sum is σ = 13449326352. Its totient is φ = 3804603264.

The previous prime is 7647223867. The next prime is 7647223891. The reversal of 7647223868 is 8683227467.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7647223867) 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, 752630 + ... + 762722.

It is an arithmetic number, because the mean of its divisors is an integer number (560388598).

Almost surely, 2^7647223868 is an apocalyptic number.

It is an amenable number.

7647223868 is a deficient number, since it is larger than the sum of its proper divisors (5802102484).

7647223868 is a wasteful number, since it uses less digits than its factorization.

7647223868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11021 (or 11019 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 53.

The square root of 7647223868 is about 87448.4068922928. The cubic root of 7647223868 is about 1970.1589595765.

The spelling of 7647223868 in words is "seven billion, six hundred forty-seven million, two hundred twenty-three thousand, eight hundred sixty-eight".