8278408636 has 12 divisors (see below), whose sum is σ = 14499428328. Its totient is φ = 4135714832.

The previous prime is 8278408613. The next prime is 8278408639. The reversal of 8278408636 is 6368048728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8278408639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 867031 + ... + 876526.

It is an arithmetic number, because the mean of its divisors is an integer number (1208285694).

Almost surely, 2^8278408636 is an apocalyptic number.

It is an amenable number.

8278408636 is a deficient number, since it is larger than the sum of its proper divisors (6221019692).

8278408636 is a wasteful number, since it uses less digits than its factorization.

8278408636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744748 (or 1744746 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 52.

The square root of 8278408636 is about 90985.7606221985. The cubic root of 8278408636 is about 2022.9366687166.

The spelling of 8278408636 in words is "eight billion, two hundred seventy-eight million, four hundred eight thousand, six hundred thirty-six".