6481225349 has 2 divisors, whose sum is σ = 6481225350. Its totient is φ = 6481225348.

The previous prime is 6481225327. The next prime is 6481225391. The reversal of 6481225349 is 9435221846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3958674724 + 2522550625 = 62918^2 + 50225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6481225349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6481225319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3240612674 + 3240612675.

It is an arithmetic number, because the mean of its divisors is an integer number (3240612675).

Almost surely, 2^6481225349 is an apocalyptic number.

It is an amenable number.

6481225349 is a deficient number, since it is larger than the sum of its proper divisors (1).

6481225349 is an equidigital number, since it uses as much as digits as its factorization.

6481225349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 44.

The square root of 6481225349 is about 80506.0578403886. The cubic root of 6481225349 is about 1864.4570098772.

The spelling of 6481225349 in words is "six billion, four hundred eighty-one million, two hundred twenty-five thousand, three hundred forty-nine".