8278236705 has 32 divisors (see below), whose sum is σ = 13830195456. Its totient is φ = 4220308224.

The previous prime is 8278236689. The next prime is 8278236713. The reversal of 8278236705 is 5076328728.

It is not a de Polignac number, because 8278236705 - 2⁴ = 8278236689 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 576999 + ... + 591171.

It is an arithmetic number, because the mean of its divisors is an integer number (432193608).

Almost surely, 2^8278236705 is an apocalyptic number.

It is an amenable number.

8278236705 is a deficient number, since it is larger than the sum of its proper divisors (5551958751).

8278236705 is a wasteful number, since it uses less digits than its factorization.

8278236705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15897.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The square root of 8278236705 is about 90984.8157936257. The cubic root of 8278236705 is about 2022.9226640954.

The spelling of 8278236705 in words is "eight billion, two hundred seventy-eight million, two hundred thirty-six thousand, seven hundred five".