43071643605 has 32 divisors (see below), whose sum is σ = 69244686720. Its totient is φ = 22861762560.

The previous prime is 43071643597. The next prime is 43071643619. The reversal of 43071643605 is 50634617034.

43071643605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43071643605 - 2³ = 43071643597 is a prime.

It is a super-2 number, since 2×43071643605² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3087045 + ... + 3100965.

It is an arithmetic number, because the mean of its divisors is an integer number (2163896460).

Almost surely, 2^43071643605 is an apocalyptic number.

It is an amenable number.

43071643605 is a deficient number, since it is larger than the sum of its proper divisors (26173043115).

43071643605 is a wasteful number, since it uses less digits than its factorization.

43071643605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14901.

The product of its (nonzero) digits is 181440, while the sum is 39.

The spelling of 43071643605 in words is "forty-three billion, seventy-one million, six hundred forty-three thousand, six hundred five".