8945188668 has 216 divisors, whose sum is σ = 25599511392. Its totient is φ = 2718458496.

The previous prime is 8945188621. The next prime is 8945188687. The reversal of 8945188668 is 8668815498.

It is a super-2 number, since 2×8945188668² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 53563921 + ... + 53564087.

Almost surely, 2^8945188668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8945188668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12799755696).

8945188668 is an abundant number, since it is smaller than the sum of its proper divisors (16654322724).

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

8945188668 is a wasteful number, since it uses less digits than its factorization.

8945188668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 342 counting only the distinct ones).

The product of its digits is 26542080, while the sum is 63.

The square root of 8945188668 is about 94579.0075439577. The cubic root of 8945188668 is about 2075.8525489179.

The spelling of 8945188668 in words is "eight billion, nine hundred forty-five million, one hundred eighty-eight thousand, six hundred sixty-eight".