6426140513 has 4 divisors (see below), whose sum is σ = 6920459028. Its totient is φ = 5931822000.

The previous prime is 6426140509. The next prime is 6426140531. The reversal of 6426140513 is 3150416246.

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

It can be written as a sum of positive squares in 2 ways, for example, as 743543824 + 5682596689 = 27268^2 + 75383^2 .

It is not a de Polignac number, because 6426140513 - 2² = 6426140509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6426140513.

It is not an unprimeable number, because it can be changed into a prime (6426140543) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 247159238 + ... + 247159263.

It is an arithmetic number, because the mean of its divisors is an integer number (1730114757).

Almost surely, 2^6426140513 is an apocalyptic number.

It is an amenable number.

6426140513 is a deficient number, since it is larger than the sum of its proper divisors (494318515).

6426140513 is a wasteful number, since it uses less digits than its factorization.

6426140513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494318514.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 6426140513 is about 80163.2117183437. The cubic root of 6426140513 is about 1859.1598812224.

Adding to 6426140513 its reverse (3150416246), we get a palindrome (9576556759).

The spelling of 6426140513 in words is "six billion, four hundred twenty-six million, one hundred forty thousand, five hundred thirteen".