43212344139 has 12 divisors (see below), whose sum is σ = 62521694872. Its totient is φ = 28760292000.

The previous prime is 43212344117. The next prime is 43212344207. The reversal of 43212344139 is 93144321234.

43212344139 is a `hidden beast` number, since 4 + 3 + 2 + 1 + 234 + 413 + 9 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-43212344139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43212344239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3989077 + ... + 3999894.

Almost surely, 2^43212344139 is an apocalyptic number.

43212344139 is a deficient number, since it is larger than the sum of its proper divisors (19309350733).

43212344139 is a wasteful number, since it uses less digits than its factorization.

43212344139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7989578 (or 7989575 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The spelling of 43212344139 in words is "forty-three billion, two hundred twelve million, three hundred forty-four thousand, one hundred thirty-nine".