42085612399 has 2 divisors, whose sum is σ = 42085612400. Its totient is φ = 42085612398.

The previous prime is 42085612357. The next prime is 42085612411. The reversal of 42085612399 is 99321658024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42085612399 - 2¹¹ = 42085610351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42085612339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21042806199 + 21042806200.

It is an arithmetic number, because the mean of its divisors is an integer number (21042806200).

Almost surely, 2^42085612399 is an apocalyptic number.

42085612399 is a deficient number, since it is larger than the sum of its proper divisors (1).

42085612399 is an equidigital number, since it uses as much as digits as its factorization.

42085612399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 42085612399 in words is "forty-two billion, eighty-five million, six hundred twelve thousand, three hundred ninety-nine".