8049321913 has 2 divisors, whose sum is σ = 8049321914. Its totient is φ = 8049321912.

The previous prime is 8049321853. The next prime is 8049321923. The reversal of 8049321913 is 3191239408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6546751744 + 1502570169 = 80912^2 + 38763^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8049321913 is a prime.

It is not a weakly prime, because it can be changed into another prime (8049321923) 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 as a sum of consecutive naturals, namely, 4024660956 + 4024660957.

It is an arithmetic number, because the mean of its divisors is an integer number (4024660957).

Almost surely, 2^8049321913 is an apocalyptic number.

It is an amenable number.

8049321913 is a deficient number, since it is larger than the sum of its proper divisors (1).

8049321913 is an equidigital number, since it uses as much as digits as its factorization.

8049321913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 8049321913 is about 89718.0133139382. The cubic root of 8049321913 is about 2004.1017415242.

The spelling of 8049321913 in words is "eight billion, forty-nine million, three hundred twenty-one thousand, nine hundred thirteen".