6498637841 has 2 divisors, whose sum is σ = 6498637842. Its totient is φ = 6498637840.

The previous prime is 6498637807. The next prime is 6498637843. The reversal of 6498637841 is 1487368946.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4261347841 + 2237290000 = 65279^2 + 47300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6498637841 is a prime.

Together with 6498637843, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6498637843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3249318920 + 3249318921.

It is an arithmetic number, because the mean of its divisors is an integer number (3249318921).

Almost surely, 2^6498637841 is an apocalyptic number.

It is an amenable number.

6498637841 is a deficient number, since it is larger than the sum of its proper divisors (1).

6498637841 is an equidigital number, since it uses as much as digits as its factorization.

6498637841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6967296, while the sum is 56.

The square root of 6498637841 is about 80614.1292888536. The cubic root of 6498637841 is about 1866.1252033095.

The spelling of 6498637841 in words is "six billion, four hundred ninety-eight million, six hundred thirty-seven thousand, eight hundred forty-one".