743542727245346 has 24 divisors (see below), whose sum is σ = 1297427512473180. Its totient is φ = 318655931066592.

The previous prime is 743542727245273. The next prime is 743542727245361. The reversal of 743542727245346 is 643542727245347.

It can be written as a sum of positive squares in 2 ways, for example, as 716505212788225 + 27037514457121 = 26767615^2 + 5199761^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56358605 + ... + 68288928.

Almost surely, 2^{743542727245346} is an apocalyptic number.

743542727245346 is a deficient number, since it is larger than the sum of its proper divisors (553884785227834).

743542727245346 is a wasteful number, since it uses less digits than its factorization.

743542727245346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124708418 (or 124708411 counting only the distinct ones).

The product of its digits is 948326400, while the sum is 65.

Subtracting from 743542727245346 its reverse (643542727245347), we obtain a palindrome (99999999999999).

The spelling of 743542727245346 in words is "seven hundred forty-three trillion, five hundred forty-two billion, seven hundred twenty-seven million, two hundred forty-five thousand, three hundred forty-six".