8278255384 has 48 divisors (see below), whose sum is σ = 18231680880. Its totient is φ = 3451904640.

The previous prime is 8278255339. The next prime is 8278255393. The reversal of 8278255384 is 4835528728.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22674 + ... + 130654.

It is an arithmetic number, because the mean of its divisors is an integer number (379826685).

Almost surely, 2^8278255384 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 8278255384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9115840440).

8278255384 is an abundant number, since it is smaller than the sum of its proper divisors (9953425496).

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

8278255384 is a wasteful number, since it uses less digits than its factorization.

8278255384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108068 (or 108027 counting only the distinct ones).

The product of its digits is 4300800, while the sum is 52.

The square root of 8278255384 is about 90984.9184425639. The cubic root of 8278255384 is about 2022.9241856007.

The spelling of 8278255384 in words is "eight billion, two hundred seventy-eight million, two hundred fifty-five thousand, three hundred eighty-four".