8255742688 has 96 divisors (see below), whose sum is σ = 16977945600. Its totient is φ = 3948811776.

The previous prime is 8255742683. The next prime is 8255742689. The reversal of 8255742688 is 8862475528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8255742683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18805573 + ... + 18806011.

It is an arithmetic number, because the mean of its divisors is an integer number (176853600).

Almost surely, 2^8255742688 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 8255742688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8488972800).

8255742688 is an abundant number, since it is smaller than the sum of its proper divisors (8722202912).

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

8255742688 is a wasteful number, since it uses less digits than its factorization.

8255742688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744 (or 736 counting only the distinct ones).

The product of its digits is 8601600, while the sum is 55.

The square root of 8255742688 is about 90861.1175806241. The cubic root of 8255742688 is about 2021.0887415808.

The spelling of 8255742688 in words is "eight billion, two hundred fifty-five million, seven hundred forty-two thousand, six hundred eighty-eight".