445610818459 has 4 divisors (see below), whose sum is σ = 445749944616. Its totient is φ = 445471692304.

The previous prime is 445610818447. The next prime is 445610818469. The reversal of 445610818459 is 954818016544.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 445610818459 - 2²⁹ = 445073947547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445610818469) 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 in 3 ways as a sum of consecutive naturals, for example, 69558274 + ... + 69564679.

It is an arithmetic number, because the mean of its divisors is an integer number (111437486154).

Almost surely, 2^445610818459 is an apocalyptic number.

445610818459 is a deficient number, since it is larger than the sum of its proper divisors (139126157).

445610818459 is a wasteful number, since it uses less digits than its factorization.

445610818459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139126156.

The product of its (nonzero) digits is 5529600, while the sum is 55.

The spelling of 445610818459 in words is "four hundred forty-five billion, six hundred ten million, eight hundred eighteen thousand, four hundred fifty-nine".