442452204091 has 2 divisors, whose sum is σ = 442452204092. Its totient is φ = 442452204090.

The previous prime is 442452204067. The next prime is 442452204143. The reversal of 442452204091 is 190402254244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442452204091 - 2⁵ = 442452204059 is a prime.

It is a super-3 number, since 3×442452204091³ (a number of 36 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 442452204091.

It is not a weakly prime, because it can be changed into another prime (442452204191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221226102045 + 221226102046.

It is an arithmetic number, because the mean of its divisors is an integer number (221226102046).

Almost surely, 2^442452204091 is an apocalyptic number.

442452204091 is a deficient number, since it is larger than the sum of its proper divisors (1).

442452204091 is an equidigital number, since it uses as much as digits as its factorization.

442452204091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 442452204091 in words is "four hundred forty-two billion, four hundred fifty-two million, two hundred four thousand, ninety-one".