743601312449 has 2 divisors, whose sum is σ = 743601312450. Its totient is φ = 743601312448.

The previous prime is 743601312427. The next prime is 743601312451. The reversal of 743601312449 is 944213106347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 738155905600 + 5445406849 = 859160^2 + 73793^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-743601312449 is a prime.

Together with 743601312451, 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 (743601012449) 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 as a sum of consecutive naturals, namely, 371800656224 + 371800656225.

It is an arithmetic number, because the mean of its divisors is an integer number (371800656225).

Almost surely, 2^743601312449 is an apocalyptic number.

It is an amenable number.

743601312449 is a deficient number, since it is larger than the sum of its proper divisors (1).

743601312449 is an equidigital number, since it uses as much as digits as its factorization.

743601312449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 743601312449 in words is "seven hundred forty-three billion, six hundred one million, three hundred twelve thousand, four hundred forty-nine".