8345431282 has 4 divisors (see below), whose sum is σ = 12518146926. Its totient is φ = 4172715640.

The previous prime is 8345431261. The next prime is 8345431301. The reversal of 8345431282 is 2821345438.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2821345438 = 2 ⋅1410672719.

It can be written as a sum of positive squares in only one way, i.e., 8343178281 + 2253001 = 91341^2 + 1501^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 as a sum of consecutive naturals, namely, 2086357819 + ... + 2086357822.

Almost surely, 2^8345431282 is an apocalyptic number.

8345431282 is a deficient number, since it is larger than the sum of its proper divisors (4172715644).

8345431282 is a wasteful number, since it uses less digits than its factorization.

8345431282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4172715643.

The product of its digits is 184320, while the sum is 40.

The square root of 8345431282 is about 91353.3320793500. The cubic root of 8345431282 is about 2028.3812863709.

The spelling of 8345431282 in words is "eight billion, three hundred forty-five million, four hundred thirty-one thousand, two hundred eighty-two".