40243643307347 has 2 divisors, whose sum is σ = 40243643307348. Its totient is φ = 40243643307346.

The previous prime is 40243643307341. The next prime is 40243643307391. The reversal of 40243643307347 is 74370334634204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40243643307347 - 2¹⁰ = 40243643306323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40243643307295 and 40243643307304.

It is not a weakly prime, because it can be changed into another prime (40243643307341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20121821653673 + 20121821653674.

It is an arithmetic number, because the mean of its divisors is an integer number (20121821653674).

Almost surely, 2^{40243643307347} is an apocalyptic number.

40243643307347 is a deficient number, since it is larger than the sum of its proper divisors (1).

40243643307347 is an equidigital number, since it uses as much as digits as its factorization.

40243643307347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12192768, while the sum is 50.

The spelling of 40243643307347 in words is "forty trillion, two hundred forty-three billion, six hundred forty-three million, three hundred seven thousand, three hundred forty-seven".