8115426013 has 2 divisors, whose sum is σ = 8115426014. Its totient is φ = 8115426012.

The previous prime is 8115426001. The next prime is 8115426029. The reversal of 8115426013 is 3106245118.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7378466404 + 736959609 = 85898^2 + 27147^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8115426013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8115426083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4057713006 + 4057713007.

It is an arithmetic number, because the mean of its divisors is an integer number (4057713007).

Almost surely, 2^8115426013 is an apocalyptic number.

It is an amenable number.

8115426013 is a deficient number, since it is larger than the sum of its proper divisors (1).

8115426013 is an equidigital number, since it uses as much as digits as its factorization.

8115426013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 8115426013 is about 90085.6593082384. The cubic root of 8115426013 is about 2009.5729407134.

The spelling of 8115426013 in words is "eight billion, one hundred fifteen million, four hundred twenty-six thousand, thirteen".