8349643959 has 32 divisors (see below), whose sum is σ = 11921333760. Its totient is φ = 5179932672.

The previous prime is 8349643957. The next prime is 8349643979. The reversal of 8349643959 is 9593469438.

It is not a de Polignac number, because 8349643959 - 2¹ = 8349643957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8349643957) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1819582 + ... + 1824164.

It is an arithmetic number, because the mean of its divisors is an integer number (372541680).

Almost surely, 2^8349643959 is an apocalyptic number.

8349643959 is a deficient number, since it is larger than the sum of its proper divisors (3571689801).

8349643959 is a wasteful number, since it uses less digits than its factorization.

8349643959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999.

The product of its digits is 25194240, while the sum is 60.

The square root of 8349643959 is about 91376.3862220432. The cubic root of 8349643959 is about 2028.7225300812.

The spelling of 8349643959 in words is "eight billion, three hundred forty-nine million, six hundred forty-three thousand, nine hundred fifty-nine".