43431673340445 has 32 divisors (see below), whose sum is σ = 74836819892352. Its totient is φ = 21381545210112.

The previous prime is 43431673340423. The next prime is 43431673340449. The reversal of 43431673340445 is 54404337613434.

It is not a de Polignac number, because 43431673340445 - 2⁸ = 43431673340189 is a prime.

It is a super-2 number, since 2×43431673340445² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43431673340449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20845074 + ... + 22833756.

It is an arithmetic number, because the mean of its divisors is an integer number (2338650621636).

Almost surely, 2^{43431673340445} is an apocalyptic number.

It is an amenable number.

43431673340445 is a deficient number, since it is larger than the sum of its proper divisors (31405146551907).

43431673340445 is a wasteful number, since it uses less digits than its factorization.

43431673340445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100701.

The product of its (nonzero) digits is 17418240, while the sum is 51.

The spelling of 43431673340445 in words is "forty-three trillion, four hundred thirty-one billion, six hundred seventy-three million, three hundred forty thousand, four hundred forty-five".