8463344791128 has 128 divisors (see below), whose sum is σ = 21619519488000. Its totient is φ = 2759945011200.

The previous prime is 8463344791067. The next prime is 8463344791129. The reversal of 8463344791128 is 8211974433648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8463344791129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 661244073 + ... + 661256871.

It is an arithmetic number, because the mean of its divisors is an integer number (168902496000).

Almost surely, 2^{8463344791128} 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 8463344791128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10809759744000).

8463344791128 is an abundant number, since it is smaller than the sum of its proper divisors (13156174696872).

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

8463344791128 is a wasteful number, since it uses less digits than its factorization.

8463344791128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14313 (or 14309 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 60.

The spelling of 8463344791128 in words is "eight trillion, four hundred sixty-three billion, three hundred forty-four million, seven hundred ninety-one thousand, one hundred twenty-eight".