743238207243 has 16 divisors (see below), whose sum is σ = 1258392732160. Its totient is φ = 424707546888.

The previous prime is 743238207233. The next prime is 743238207263. The reversal of 743238207243 is 342702832347.

743238207243 is a `hidden beast` number, since 7 + 4 + 323 + 82 + 0 + 7 + 243 = 666.

It is not a de Polignac number, because 743238207243 - 2⁹ = 743238206731 is a prime.

It is a super-3 number, since 3×743238207243³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (743238207233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1966238455 + ... + 1966238832.

It is an arithmetic number, because the mean of its divisors is an integer number (78649545760).

Almost surely, 2^743238207243 is an apocalyptic number.

743238207243 is a deficient number, since it is larger than the sum of its proper divisors (515154524917).

743238207243 is a wasteful number, since it uses less digits than its factorization.

743238207243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3932477303 (or 3932477297 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 45.

The spelling of 743238207243 in words is "seven hundred forty-three billion, two hundred thirty-eight million, two hundred seven thousand, two hundred forty-three".