6347641013 has 4 divisors (see below), whose sum is σ = 7254446880. Its totient is φ = 5440835148.

The previous prime is 6347640991. The next prime is 6347641021. The reversal of 6347641013 is 3101467436.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6347641013 - 2¹² = 6347636917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6347649013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453402923 + ... + 453402936.

It is an arithmetic number, because the mean of its divisors is an integer number (1813611720).

Almost surely, 2^6347641013 is an apocalyptic number.

It is an amenable number.

6347641013 is a deficient number, since it is larger than the sum of its proper divisors (906805867).

6347641013 is an equidigital number, since it uses as much as digits as its factorization.

6347641013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906805866.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 6347641013 is about 79672.0842767402. The cubic root of 6347641013 is about 1851.5585612502.

The spelling of 6347641013 in words is "six billion, three hundred forty-seven million, six hundred forty-one thousand, thirteen".