42743814739 has 2 divisors, whose sum is σ = 42743814740. Its totient is φ = 42743814738.

The previous prime is 42743814727. The next prime is 42743814851. The reversal of 42743814739 is 93741834724.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42743814739 is a prime.

It is not a weakly prime, because it can be changed into another prime (42743814439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21371907369 + 21371907370.

It is an arithmetic number, because the mean of its divisors is an integer number (21371907370).

Almost surely, 2^42743814739 is an apocalyptic number.

42743814739 is a deficient number, since it is larger than the sum of its proper divisors (1).

42743814739 is an equidigital number, since it uses as much as digits as its factorization.

42743814739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 52.

The spelling of 42743814739 in words is "forty-two billion, seven hundred forty-three million, eight hundred fourteen thousand, seven hundred thirty-nine".