43407444361 has 4 divisors (see below), whose sum is σ = 43407878724. Its totient is φ = 43407010000.

The previous prime is 43407444341. The next prime is 43407444373. The reversal of 43407444361 is 16344470434.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 24136729600 + 19270714761 = 155360^2 + 138819^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43407444361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43407444341) 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, 16611 + ... + 295111.

It is an arithmetic number, because the mean of its divisors is an integer number (10851969681).

Almost surely, 2^43407444361 is an apocalyptic number.

It is an amenable number.

43407444361 is a deficient number, since it is larger than the sum of its proper divisors (434363).

43407444361 is a wasteful number, since it uses less digits than its factorization.

43407444361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434362.

The product of its (nonzero) digits is 387072, while the sum is 40.

The spelling of 43407444361 in words is "forty-three billion, four hundred seven million, four hundred forty-four thousand, three hundred sixty-one".