8889768016640 has 72 divisors (see below), whose sum is σ = 24335739970080. Its totient is φ = 3047920459776.

The previous prime is 8889768016627. The next prime is 8889768016643. The reversal of 8889768016640 is 466108679888.

8889768016640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (71) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (8889768016643) 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, 496071845 + ... + 496089764.

Almost surely, 2^{8889768016640} is an apocalyptic number.

8889768016640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8889768016640 is an abundant number, since it is smaller than the sum of its proper divisors (15445971953440).

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

8889768016640 is an equidigital number, since it uses as much as digits as its factorization.

8889768016640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992161637 (or 992161623 counting only the distinct ones).

The product of its (nonzero) digits is 222953472, while the sum is 71.

The spelling of 8889768016640 in words is "eight trillion, eight hundred eighty-nine billion, seven hundred sixty-eight million, sixteen thousand, six hundred forty".