6347402849 has 2 divisors, whose sum is σ = 6347402850. Its totient is φ = 6347402848.

The previous prime is 6347402821. The next prime is 6347402899. The reversal of 6347402849 is 9482047436.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5178241600 + 1169161249 = 71960^2 + 34193^2 .

It is a cyclic number.

It is not a de Polignac number, because 6347402849 - 2¹² = 6347398753 is a prime.

It is not a weakly prime, because it can be changed into another prime (6347402899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3173701424 + 3173701425.

It is an arithmetic number, because the mean of its divisors is an integer number (3173701425).

Almost surely, 2^6347402849 is an apocalyptic number.

It is an amenable number.

6347402849 is a deficient number, since it is larger than the sum of its proper divisors (1).

6347402849 is an equidigital number, since it uses as much as digits as its factorization.

6347402849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 47.

The square root of 6347402849 is about 79670.5896112235. The cubic root of 6347402849 is about 1851.5354040853.

The spelling of 6347402849 in words is "six billion, three hundred forty-seven million, four hundred two thousand, eight hundred forty-nine".