8667447668 has 24 divisors (see below), whose sum is σ = 16553212704. Its totient is φ = 3938256800.

The previous prime is 8667447653. The next prime is 8667447731.

8667447668 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×8667447668³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8667447668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84671 + ... + 156537.

It is an arithmetic number, because the mean of its divisors is an integer number (689717196).

Almost surely, 2^8667447668 is an apocalyptic number.

It is an amenable number.

8667447668 is a deficient number, since it is larger than the sum of its proper divisors (7885765036).

8667447668 is a wasteful number, since it uses less digits than its factorization.

8667447668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74623 (or 74621 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 62.

The square root of 8667447668 is about 93099.1281806656. The cubic root of 8667447668 is about 2054.1417489062.

The spelling of 8667447668 in words is "eight billion, six hundred sixty-seven million, four hundred forty-seven thousand, six hundred sixty-eight".