12172330539 has 32 divisors (see below), whose sum is σ = 18115342080. Its totient is φ = 8077968000.

The previous prime is 12172330537. The next prime is 12172330543. The reversal of 12172330539 is 93503327121.

It is a happy number.

12172330539 is a `hidden beast` number, since 1 + 21 + 72 + 3 + 30 + 539 = 666.

It is not a de Polignac number, because 12172330539 - 2¹ = 12172330537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12172330537) 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, 7480644 + ... + 7482270.

It is an arithmetic number, because the mean of its divisors is an integer number (566104440).

Almost surely, 2^12172330539 is an apocalyptic number.

12172330539 is a deficient number, since it is larger than the sum of its proper divisors (5943011541).

12172330539 is a wasteful number, since it uses less digits than its factorization.

12172330539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2728 (or 2722 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The spelling of 12172330539 in words is "twelve billion, one hundred seventy-two million, three hundred thirty thousand, five hundred thirty-nine".