12081968789 has 16 divisors (see below), whose sum is σ = 13604668800. Its totient is φ = 10632980160.

The previous prime is 12081968741. The next prime is 12081968803. The reversal of 12081968789 is 98786918021.

It is not a de Polignac number, because 12081968789 - 2²⁰ = 12080920213 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 (12081938789) 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, 6407 + ... + 155579.

It is an arithmetic number, because the mean of its divisors is an integer number (850291800).

Almost surely, 2^12081968789 is an apocalyptic number.

It is an amenable number.

12081968789 is a deficient number, since it is larger than the sum of its proper divisors (1522700011).

12081968789 is a wasteful number, since it uses less digits than its factorization.

12081968789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149420.

The product of its (nonzero) digits is 3483648, while the sum is 59.

The spelling of 12081968789 in words is "twelve billion, eighty-one million, nine hundred sixty-eight thousand, seven hundred eighty-nine".