8463209542568 has 64 divisors (see below), whose sum is σ = 17438552579520. Its totient is φ = 3818650521600.

The previous prime is 8463209542549. The next prime is 8463209542589. The reversal of 8463209542568 is 8652459023648.

It is a super-2 number, since 2×8463209542568² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8463209542568.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11417096 + ... + 12135752.

It is an arithmetic number, because the mean of its divisors is an integer number (272477384055).

Almost surely, 2^{8463209542568} is an apocalyptic number.

8463209542568 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8463209542568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8719276289760).

8463209542568 is an abundant number, since it is smaller than the sum of its proper divisors (8975343036952).

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

8463209542568 is a wasteful number, since it uses less digits than its factorization.

8463209542568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719658 (or 719654 counting only the distinct ones).

The product of its (nonzero) digits is 99532800, while the sum is 62.

The spelling of 8463209542568 in words is "eight trillion, four hundred sixty-three billion, two hundred nine million, five hundred forty-two thousand, five hundred sixty-eight".