43042164243 has 16 divisors (see below), whose sum is σ = 61814538240. Its totient is φ = 26483026464.

The previous prime is 43042164229. The next prime is 43042164283. The reversal of 43042164243 is 34246124034.

It is not a de Polignac number, because 43042164243 - 2¹³ = 43042156051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43042164223) 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, 149748 + ... + 329406.

It is an arithmetic number, because the mean of its divisors is an integer number (3863408640).

Almost surely, 2^43042164243 is an apocalyptic number.

43042164243 is a deficient number, since it is larger than the sum of its proper divisors (18772373997).

43042164243 is a wasteful number, since it uses less digits than its factorization.

43042164243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185818.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 43042164243 its reverse (34246124034), we get a palindrome (77288288277).

The spelling of 43042164243 in words is "forty-three billion, forty-two million, one hundred sixty-four thousand, two hundred forty-three".