43149116671 has 4 divisors (see below), whose sum is σ = 43156124152. Its totient is φ = 43142109192.

The previous prime is 43149116623. The next prime is 43149116683. The reversal of 43149116671 is 17661194134.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43149116671 - 2²⁹ = 42612245759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43149116611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3494496 + ... + 3506821.

It is an arithmetic number, because the mean of its divisors is an integer number (10789031038).

Almost surely, 2^43149116671 is an apocalyptic number.

43149116671 is a deficient number, since it is larger than the sum of its proper divisors (7007481).

43149116671 is an equidigital number, since it uses as much as digits as its factorization.

43149116671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7007480.

The product of its digits is 108864, while the sum is 43.

The spelling of 43149116671 in words is "forty-three billion, one hundred forty-nine million, one hundred sixteen thousand, six hundred seventy-one".