43444040737 has 8 divisors (see below), whose sum is σ = 43494252480. Its totient is φ = 43393855440.

The previous prime is 43444040723. The next prime is 43444040741. The reversal of 43444040737 is 73704044434.

43444040737 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 43444040737 - 2⁷ = 43444040609 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 43444040737.

It is not an unprimeable number, because it can be changed into a prime (43444040767) 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, 6489562 + ... + 6496252.

It is an arithmetic number, because the mean of its divisors is an integer number (5436781560).

Almost surely, 2^43444040737 is an apocalyptic number.

It is an amenable number.

43444040737 is a deficient number, since it is larger than the sum of its proper divisors (50211743).

43444040737 is a wasteful number, since it uses less digits than its factorization.

43444040737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13223.

The product of its (nonzero) digits is 451584, while the sum is 40.

The spelling of 43444040737 in words is "forty-three billion, four hundred forty-four million, forty thousand, seven hundred thirty-seven".