8940799872 has 128 divisors (see below), whose sum is σ = 26474263200. Its totient is φ = 2970501120.

The previous prime is 8940799853. The next prime is 8940799877. The reversal of 8940799872 is 2789970498.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8940799877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1091472 + ... + 1099632.

Almost surely, 2^8940799872 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 8940799872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13237131600).

8940799872 is an abundant number, since it is smaller than the sum of its proper divisors (17533463328).

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

8940799872 is a wasteful number, since it uses less digits than its factorization.

8940799872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8501 (or 8483 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 63.

The square root of 8940799872 is about 94555.8029525423. The cubic root of 8940799872 is about 2075.5130001364.

The spelling of 8940799872 in words is "eight billion, nine hundred forty million, seven hundred ninety-nine thousand, eight hundred seventy-two".