8626624668 has 36 divisors (see below), whose sum is σ = 21818266288. Its totient is φ = 2873949120.

The previous prime is 8626624661. The next prime is 8626624679. The reversal of 8626624668 is 8664266268.

8626624668 is a `hidden beast` number, since 8 + 6 + 2 + 6 + 624 + 6 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×8626624668² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8626624661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 480 + ... + 131352.

Almost surely, 2^8626624668 is an apocalyptic number.

It is an amenable number.

8626624668 is an abundant number, since it is smaller than the sum of its proper divisors (13191641620).

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

8626624668 is a wasteful number, since it uses less digits than its factorization.

8626624668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132714 (or 132709 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 54.

The square root of 8626624668 is about 92879.6246116445. The cubic root of 8626624668 is about 2050.9117235865.

The spelling of 8626624668 in words is "eight billion, six hundred twenty-six million, six hundred twenty-four thousand, six hundred sixty-eight".