12066942789 has 32 divisors (see below), whose sum is σ = 20131246080. Its totient is φ = 7077380400.

The previous prime is 12066942779. The next prime is 12066942791. The reversal of 12066942789 is 98724966021.

12066942789 is a `hidden beast` number, since 1 + 206 + 6 + 9 + 427 + 8 + 9 = 666.

It is not a de Polignac number, because 12066942789 - 2⁷ = 12066942661 is a prime.

It is a super-2 number, since 2×12066942789² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12066942739) 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, 646107 + ... + 664520.

It is an arithmetic number, because the mean of its divisors is an integer number (629101440).

Almost surely, 2^12066942789 is an apocalyptic number.

It is an amenable number.

12066942789 is a deficient number, since it is larger than the sum of its proper divisors (8064303291).

12066942789 is a wasteful number, since it uses less digits than its factorization.

12066942789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310678 (or 1310672 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 12066942789 in words is "twelve billion, sixty-six million, nine hundred forty-two thousand, seven hundred eighty-nine".