8856042428784 has 160 divisors (see below), whose sum is σ = 23712989414400. Its totient is φ = 2846083968000.

The previous prime is 8856042428711. The next prime is 8856042428819. The reversal of 8856042428784 is 4878242406588.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1041760534 + ... + 1041769034.

It is an arithmetic number, because the mean of its divisors is an integer number (148206183840).

Almost surely, 2^{8856042428784} 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 8856042428784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11856494707200).

8856042428784 is an abundant number, since it is smaller than the sum of its proper divisors (14856946985616).

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

8856042428784 is a wasteful number, since it uses less digits than its factorization.

8856042428784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15023 (or 15017 counting only the distinct ones).

The product of its (nonzero) digits is 220200960, while the sum is 66.

The spelling of 8856042428784 in words is "eight trillion, eight hundred fifty-six billion, forty-two million, four hundred twenty-eight thousand, seven hundred eighty-four".