8448783870534 has 256 divisors, whose sum is σ = 21238692065280. Its totient is φ = 2187291961344.

The previous prime is 8448783870523. The next prime is 8448783870539. The reversal of 8448783870534 is 4350783878448.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8448783870539) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 11371175767 + ... + 11371176509.

It is an arithmetic number, because the mean of its divisors is an integer number (82963640880).

Almost surely, 2^{8448783870534} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8448783870534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10619346032640).

8448783870534 is an abundant number, since it is smaller than the sum of its proper divisors (12789908194746).

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

8448783870534 is a wasteful number, since it uses less digits than its factorization.

8448783870534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512 (or 1454 counting only the distinct ones).

The product of its (nonzero) digits is 578027520, while the sum is 69.

The spelling of 8448783870534 in words is "eight trillion, four hundred forty-eight billion, seven hundred eighty-three million, eight hundred seventy thousand, five hundred thirty-four".