444453565145 has 8 divisors (see below), whose sum is σ = 551735460360. Its totient is φ = 343302064000.

The previous prime is 444453565097. The next prime is 444453565147. The reversal of 444453565145 is 541565354444.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15663023104 + 428790542041 = 125152^2 + 654821^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 444453565145 - 2¹⁴ = 444453548761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 444453565093 and 444453565102.

It is not an unprimeable number, because it can be changed into a prime (444453565147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1532598356 + ... + 1532598645.

It is an arithmetic number, because the mean of its divisors is an integer number (68966932545).

Almost surely, 2^444453565145 is an apocalyptic number.

It is an amenable number.

444453565145 is a deficient number, since it is larger than the sum of its proper divisors (107281895215).

444453565145 is a wasteful number, since it uses less digits than its factorization.

444453565145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065197035.

The product of its digits is 11520000, while the sum is 50.

The spelling of 444453565145 in words is "four hundred forty-four billion, four hundred fifty-three million, five hundred sixty-five thousand, one hundred forty-five".