8278424122 has 4 divisors (see below), whose sum is σ = 12417636186. Its totient is φ = 4139212060.

The previous prime is 8278424117. The next prime is 8278424153. The reversal of 8278424122 is 2214248728.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4638835881 + 3639588241 = 68109^2 + 60329^2 .

It is a super-2 number, since 2×8278424122² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2069606029 + ... + 2069606032.

Almost surely, 2^8278424122 is an apocalyptic number.

8278424122 is a deficient number, since it is larger than the sum of its proper divisors (4139212064).

8278424122 is a wasteful number, since it uses less digits than its factorization.

8278424122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4139212063.

The product of its digits is 114688, while the sum is 40.

The square root of 8278424122 is about 90985.8457233871. The cubic root of 8278424122 is about 2022.9379301176.

The spelling of 8278424122 in words is "eight billion, two hundred seventy-eight million, four hundred twenty-four thousand, one hundred twenty-two".