442025515189 has 2 divisors, whose sum is σ = 442025515190. Its totient is φ = 442025515188.

The previous prime is 442025515163. The next prime is 442025515201. The reversal of 442025515189 is 981515520244.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 425064880900 + 16960634289 = 651970^2 + 130233^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442025515189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442025555189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221012757594 + 221012757595.

It is an arithmetic number, because the mean of its divisors is an integer number (221012757595).

Almost surely, 2^442025515189 is an apocalyptic number.

It is an amenable number.

442025515189 is a deficient number, since it is larger than the sum of its proper divisors (1).

442025515189 is an equidigital number, since it uses as much as digits as its factorization.

442025515189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576000, while the sum is 46.

The spelling of 442025515189 in words is "four hundred forty-two billion, twenty-five million, five hundred fifteen thousand, one hundred eighty-nine".