445221435019 has 2 divisors, whose sum is σ = 445221435020. Its totient is φ = 445221435018.

The previous prime is 445221435017. The next prime is 445221435041. The reversal of 445221435019 is 910534122544.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445221435019 - 2¹ = 445221435017 is a prime.

It is a super-2 number, since 2×445221435019² (a number of 24 digits) contains 22 as substring.

Together with 445221435017, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (445221435017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222610717509 + 222610717510.

It is an arithmetic number, because the mean of its divisors is an integer number (222610717510).

Almost surely, 2^445221435019 is an apocalyptic number.

445221435019 is a deficient number, since it is larger than the sum of its proper divisors (1).

445221435019 is an equidigital number, since it uses as much as digits as its factorization.

445221435019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 445221435019 in words is "four hundred forty-five billion, two hundred twenty-one million, four hundred thirty-five thousand, nineteen".