4437444447345 has 128 divisors (see below), whose sum is σ = 9230783385600. Its totient is φ = 1767679884288.

The previous prime is 4437444447329. The next prime is 4437444447349. The reversal of 4437444447345 is 5437444447344.

It is not a de Polignac number, because 4437444447345 - 2⁴ = 4437444447329 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (4437444447349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7037311 + ... + 7641899.

It is an arithmetic number, because the mean of its divisors is an integer number (72115495200).

Almost surely, 2^{4437444447345} is an apocalyptic number.

It is an amenable number.

4437444447345 is an abundant number, since it is smaller than the sum of its proper divisors (4793338938255).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4437444447345 is a wasteful number, since it uses less digits than its factorization.

4437444447345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604919.

The product of its digits is 144506880, while the sum is 57.

Subtracting 4437444447345 from its reverse (5437444447344), we obtain a palindrome (999999999999).

The spelling of 4437444447345 in words is "four trillion, four hundred thirty-seven billion, four hundred forty-four million, four hundred forty-seven thousand, three hundred forty-five".