8991468190840 has 16 divisors (see below), whose sum is σ = 20230803429480. Its totient is φ = 3596587276320.

The previous prime is 8991468190829. The next prime is 8991468190919. The reversal of 8991468190840 is 480918641998.

8991468190840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112393352346 + ... + 112393352425.

Almost surely, 2^{8991468190840} is an apocalyptic number.

It is an amenable number.

8991468190840 is an abundant number, since it is smaller than the sum of its proper divisors (11239335238640).

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

8991468190840 is a wasteful number, since it uses less digits than its factorization.

8991468190840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224786704782 (or 224786704778 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 67.

The spelling of 8991468190840 in words is "eight trillion, nine hundred ninety-one billion, four hundred sixty-eight million, one hundred ninety thousand, eight hundred forty".