8456441043864 has 128 divisors (see below), whose sum is σ = 23109364800000. Its totient is φ = 2557411584000.

The previous prime is 8456441043731. The next prime is 8456441043877. The reversal of 8456441043864 is 4683401446548.

It is a super-2 number, since 2×8456441043864² (a number of 27 digits) contains 22 as substring.

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, 585254112 + ... + 585268560.

It is an arithmetic number, because the mean of its divisors is an integer number (180541912500).

Almost surely, 2^{8456441043864} 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 8456441043864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11554682400000).

8456441043864 is an abundant number, since it is smaller than the sum of its proper divisors (14652923756136).

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

8456441043864 is a wasteful number, since it uses less digits than its factorization.

8456441043864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18769 (or 18765 counting only the distinct ones).

The product of its (nonzero) digits is 35389440, while the sum is 57.

The spelling of 8456441043864 in words is "eight trillion, four hundred fifty-six billion, four hundred forty-one million, forty-three thousand, eight hundred sixty-four".