42318332843 has 2 divisors, whose sum is σ = 42318332844. Its totient is φ = 42318332842.

The previous prime is 42318332839. The next prime is 42318332851. The reversal of 42318332843 is 34823381324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42318332843 - 2² = 42318332839 is a prime.

It is a super-2 number, since 2×42318332843² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42318332843.

It is not a weakly prime, because it can be changed into another prime (42318332803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21159166421 + 21159166422.

It is an arithmetic number, because the mean of its divisors is an integer number (21159166422).

Almost surely, 2^42318332843 is an apocalyptic number.

42318332843 is a deficient number, since it is larger than the sum of its proper divisors (1).

42318332843 is an equidigital number, since it uses as much as digits as its factorization.

42318332843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 41.

The spelling of 42318332843 in words is "forty-two billion, three hundred eighteen million, three hundred thirty-two thousand, eight hundred forty-three".