42442135919699 has 2 divisors, whose sum is σ = 42442135919700. Its totient is φ = 42442135919698.

The previous prime is 42442135919657. The next prime is 42442135919767. The reversal of 42442135919699 is 99691953124424.

It is an a-pointer prime, because the next prime (42442135919767) can be obtained adding 42442135919699 to its sum of digits (68).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42442135919699 is a prime.

It is not a weakly prime, because it can be changed into another prime (42442135913699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21221067959849 + 21221067959850.

It is an arithmetic number, because the mean of its divisors is an integer number (21221067959850).

Almost surely, 2^{42442135919699} is an apocalyptic number.

42442135919699 is a deficient number, since it is larger than the sum of its proper divisors (1).

42442135919699 is an equidigital number, since it uses as much as digits as its factorization.

42442135919699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151165440, while the sum is 68.

The spelling of 42442135919699 in words is "forty-two trillion, four hundred forty-two billion, one hundred thirty-five million, nine hundred nineteen thousand, six hundred ninety-nine".