8647972797468 has 48 divisors (see below), whose sum is σ = 21370205765664. Its totient is φ = 2712502087680.

The previous prime is 8647972797413. The next prime is 8647972797487.

8647972797468 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×8647972797468² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3644205 + ... + 5529572.

It is an arithmetic number, because the mean of its divisors is an integer number (445212620118).

Almost surely, 2^{8647972797468} is an apocalyptic number.

It is an amenable number.

8647972797468 is an abundant number, since it is smaller than the sum of its proper divisors (12722232968196).

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

8647972797468 is a wasteful number, since it uses less digits than its factorization.

8647972797468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9178422 (or 9178420 counting only the distinct ones).

The product of its digits is 14338695168, while the sum is 84.

The spelling of 8647972797468 in words is "eight trillion, six hundred forty-seven billion, nine hundred seventy-two million, seven hundred ninety-seven thousand, four hundred sixty-eight".