42440332232387 has 2 divisors, whose sum is σ = 42440332232388. Its totient is φ = 42440332232386.

The previous prime is 42440332232351. The next prime is 42440332232407. The reversal of 42440332232387 is 78323223304424.

42440332232387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42440332232387 - 2²⁴ = 42440315455171 is a prime.

It is not a weakly prime, because it can be changed into another prime (42440332232087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21220166116193 + 21220166116194.

It is an arithmetic number, because the mean of its divisors is an integer number (21220166116194).

Almost surely, 2^{42440332232387} is an apocalyptic number.

42440332232387 is a deficient number, since it is larger than the sum of its proper divisors (1).

42440332232387 is an equidigital number, since it uses as much as digits as its factorization.

42440332232387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4644864, while the sum is 47.

The spelling of 42440332232387 in words is "forty-two trillion, four hundred forty billion, three hundred thirty-two million, two hundred thirty-two thousand, three hundred eighty-seven".