8897022447940 has 144 divisors (see below), whose sum is σ = 20856672712512. Its totient is φ = 3184932960000.

The previous prime is 8897022447923. The next prime is 8897022447947. The reversal of 8897022447940 is 497442207988.

It is not an unprimeable number, because it can be changed into a prime (8897022447947) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 262812015 + ... + 262845865.

It is an arithmetic number, because the mean of its divisors is an integer number (144838004948).

Almost surely, 2^{8897022447940} 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 8897022447940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10428336356256).

8897022447940 is an abundant number, since it is smaller than the sum of its proper divisors (11959650264572).

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

8897022447940 is a wasteful number, since it uses less digits than its factorization.

8897022447940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35570 (or 35557 counting only the distinct ones).

The product of its (nonzero) digits is 65028096, while the sum is 64.

The spelling of 8897022447940 in words is "eight trillion, eight hundred ninety-seven billion, twenty-two million, four hundred forty-seven thousand, nine hundred forty".