43073209643 has 16 divisors (see below), whose sum is σ = 44218374144. Its totient is φ = 41938067520.

The previous prime is 43073209633. The next prime is 43073209691. The reversal of 43073209643 is 34690237034.

It is a cyclic number.

It is not a de Polignac number, because 43073209643 - 2¹² = 43073205547 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 43073209643.

It is not an unprimeable number, because it can be changed into a prime (43073209633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10021871 + ... + 10026167.

It is an arithmetic number, because the mean of its divisors is an integer number (2763648384).

Almost surely, 2^43073209643 is an apocalyptic number.

43073209643 is a deficient number, since it is larger than the sum of its proper divisors (1145164501).

43073209643 is a wasteful number, since it uses less digits than its factorization.

43073209643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5402.

The product of its (nonzero) digits is 326592, while the sum is 41.

The spelling of 43073209643 in words is "forty-three billion, seventy-three million, two hundred nine thousand, six hundred forty-three".