8278719965568 has 960 divisors, whose sum is σ = 27527194450800. Its totient is φ = 2467569401856.

The previous prime is 8278719965501. The next prime is 8278719965573. The reversal of 8278719965568 is 8655699178728.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 7546690396 + ... + 7546691492.

Almost surely, 2^{8278719965568} 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 8278719965568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13763597225400).

8278719965568 is an abundant number, since it is smaller than the sum of its proper divisors (19248474485232).

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

8278719965568 is a wasteful number, since it uses less digits than its factorization.

8278719965568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281 (or 1247 counting only the distinct ones).

The product of its digits is 3657830400, while the sum is 81.

The spelling of 8278719965568 in words is "eight trillion, two hundred seventy-eight billion, seven hundred nineteen million, nine hundred sixty-five thousand, five hundred sixty-eight".