42442142102047 has 2 divisors, whose sum is σ = 42442142102048. Its totient is φ = 42442142102046.

The previous prime is 42442142101981. The next prime is 42442142102057. The reversal of 42442142102047 is 74020124124424.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42442142102047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42442142101997 and 42442142102015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42442142102057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21221071051023 + 21221071051024.

It is an arithmetic number, because the mean of its divisors is an integer number (21221071051024).

Almost surely, 2^{42442142102047} is an apocalyptic number.

42442142102047 is a deficient number, since it is larger than the sum of its proper divisors (1).

42442142102047 is an equidigital number, since it uses as much as digits as its factorization.

42442142102047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 114688, while the sum is 37.

The spelling of 42442142102047 in words is "forty-two trillion, four hundred forty-two billion, one hundred forty-two million, one hundred two thousand, forty-seven".