445644614449 has 4 divisors (see below), whose sum is σ = 456008442736. Its totient is φ = 435280786164.

The previous prime is 445644614447. The next prime is 445644614539. The reversal of 445644614449 is 944416446544.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 445644614449 - 2¹ = 445644614447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 445644614449.

It is not an unprimeable number, because it can be changed into a prime (445644614447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5181914079 + ... + 5181914164.

It is an arithmetic number, because the mean of its divisors is an integer number (114002110684).

Almost surely, 2^445644614449 is an apocalyptic number.

It is an amenable number.

445644614449 is a deficient number, since it is larger than the sum of its proper divisors (10363828287).

445644614449 is a wasteful number, since it uses less digits than its factorization.

445644614449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10363828286.

The product of its digits is 26542080, while the sum is 55.

The spelling of 445644614449 in words is "four hundred forty-five billion, six hundred forty-four million, six hundred fourteen thousand, four hundred forty-nine".