743221243501943 has 2 divisors, whose sum is σ = 743221243501944. Its totient is φ = 743221243501942.

The previous prime is 743221243501939. The next prime is 743221243502011. The reversal of 743221243501943 is 349105342122347.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 743221243501943 - 2² = 743221243501939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 743221243501891 and 743221243501900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (743221243501643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371610621750971 + 371610621750972.

It is an arithmetic number, because the mean of its divisors is an integer number (371610621750972).

Almost surely, 2^{743221243501943} is an apocalyptic number.

743221243501943 is a deficient number, since it is larger than the sum of its proper divisors (1).

743221243501943 is an equidigital number, since it uses as much as digits as its factorization.

743221243501943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 50.

The spelling of 743221243501943 in words is "seven hundred forty-three trillion, two hundred twenty-one billion, two hundred forty-three million, five hundred one thousand, nine hundred forty-three".