442363363249 has 2 divisors, whose sum is σ = 442363363250. Its totient is φ = 442363363248.

The previous prime is 442363363199. The next prime is 442363363319. The reversal of 442363363249 is 942363363244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 348580425649 + 93782937600 = 590407^2 + 306240^2 .

It is a cyclic number.

It is not a de Polignac number, because 442363363249 - 2²⁷ = 442229145521 is a prime.

It is not a weakly prime, because it can be changed into another prime (442363363649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221181681624 + 221181681625.

It is an arithmetic number, because the mean of its divisors is an integer number (221181681625).

Almost surely, 2^442363363249 is an apocalyptic number.

It is an amenable number.

442363363249 is a deficient number, since it is larger than the sum of its proper divisors (1).

442363363249 is an equidigital number, since it uses as much as digits as its factorization.

442363363249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6718464, while the sum is 49.

The spelling of 442363363249 in words is "four hundred forty-two billion, three hundred sixty-three million, three hundred sixty-three thousand, two hundred forty-nine".