424442322091 has 2 divisors, whose sum is σ = 424442322092. Its totient is φ = 424442322090.

The previous prime is 424442322067. The next prime is 424442322121. The reversal of 424442322091 is 190223244424.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424442322091 is a prime.

It is a super-2 number, since 2×424442322091² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 424442322091.

It is not a weakly prime, because it can be changed into another prime (424442323091) 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, 212221161045 + 212221161046.

It is an arithmetic number, because the mean of its divisors is an integer number (212221161046).

Almost surely, 2^424442322091 is an apocalyptic number.

424442322091 is a deficient number, since it is larger than the sum of its proper divisors (1).

424442322091 is an equidigital number, since it uses as much as digits as its factorization.

424442322091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 37.

The spelling of 424442322091 in words is "four hundred twenty-four billion, four hundred forty-two million, three hundred twenty-two thousand, ninety-one".