6453432649 has 2 divisors, whose sum is σ = 6453432650. Its totient is φ = 6453432648.

The previous prime is 6453432581. The next prime is 6453432691. The reversal of 6453432649 is 9462343546.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6288490000 + 164942649 = 79300^2 + 12843^2 .

It is a cyclic number.

It is not a de Polignac number, because 6453432649 - 2¹⁹ = 6452908361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6453432599 and 6453432608.

It is not a weakly prime, because it can be changed into another prime (6453432049) 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, 3226716324 + 3226716325.

It is an arithmetic number, because the mean of its divisors is an integer number (3226716325).

Almost surely, 2^6453432649 is an apocalyptic number.

It is an amenable number.

6453432649 is a deficient number, since it is larger than the sum of its proper divisors (1).

6453432649 is an equidigital number, since it uses as much as digits as its factorization.

6453432649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 46.

The square root of 6453432649 is about 80333.2599176705. The cubic root of 6453432649 is about 1861.7881452034.

The spelling of 6453432649 in words is "six billion, four hundred fifty-three million, four hundred thirty-two thousand, six hundred forty-nine".