8278255775 has 12 divisors (see below), whose sum is σ = 10277041632. Its totient is φ = 6614859840.

The previous prime is 8278255753. The next prime is 8278255793. The reversal of 8278255775 is 5775528728.

It is a de Polignac number, because none of the positive numbers 2^k-8278255775 is a prime.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8278255775.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171767 + ... + 214616.

It is an arithmetic number, because the mean of its divisors is an integer number (856420136).

Almost surely, 2^8278255775 is an apocalyptic number.

8278255775 is a deficient number, since it is larger than the sum of its proper divisors (1998785857).

8278255775 is a wasteful number, since it uses less digits than its factorization.

8278255775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387250 (or 387245 counting only the distinct ones).

The product of its digits is 10976000, while the sum is 56.

The square root of 8278255775 is about 90984.9205912716. The cubic root of 8278255775 is about 2022.9242174497.

The spelling of 8278255775 in words is "eight billion, two hundred seventy-eight million, two hundred fifty-five thousand, seven hundred seventy-five".