743245356461 has 2 divisors, whose sum is σ = 743245356462. Its totient is φ = 743245356460.

The previous prime is 743245356421. The next prime is 743245356487. The reversal of 743245356461 is 164653542347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 713805316900 + 29440039561 = 844870^2 + 171581^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-743245356461 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (743245356401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371622678230 + 371622678231.

It is an arithmetic number, because the mean of its divisors is an integer number (371622678231).

Almost surely, 2^743245356461 is an apocalyptic number.

It is an amenable number.

743245356461 is a deficient number, since it is larger than the sum of its proper divisors (1).

743245356461 is an equidigital number, since it uses as much as digits as its factorization.

743245356461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7257600, while the sum is 50.

The spelling of 743245356461 in words is "seven hundred forty-three billion, two hundred forty-five million, three hundred fifty-six thousand, four hundred sixty-one".