42840243367 has 2 divisors, whose sum is σ = 42840243368. Its totient is φ = 42840243366.

The previous prime is 42840243343. The next prime is 42840243497. The reversal of 42840243367 is 76334204824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42840243367 - 2¹⁹ = 42839719079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42840243307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21420121683 + 21420121684.

It is an arithmetic number, because the mean of its divisors is an integer number (21420121684).

Almost surely, 2^42840243367 is an apocalyptic number.

42840243367 is a deficient number, since it is larger than the sum of its proper divisors (1).

42840243367 is an equidigital number, since it uses as much as digits as its factorization.

42840243367 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 774144, while the sum is 43.

The spelling of 42840243367 in words is "forty-two billion, eight hundred forty million, two hundred forty-three thousand, three hundred sixty-seven".