12390012789 has 32 divisors (see below), whose sum is σ = 20616422400. Its totient is φ = 6430108800.

The previous prime is 12390012773. The next prime is 12390012793. The reversal of 12390012789 is 98721009321.

It is not a de Polignac number, because 12390012789 - 2⁴ = 12390012773 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12390012789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12390052789) 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, 216754 + ... + 267884.

It is an arithmetic number, because the mean of its divisors is an integer number (644263200).

Almost surely, 2^12390012789 is an apocalyptic number.

It is an amenable number.

12390012789 is a deficient number, since it is larger than the sum of its proper divisors (8226409611).

12390012789 is a wasteful number, since it uses less digits than its factorization.

12390012789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52201.

The product of its (nonzero) digits is 54432, while the sum is 42.

The spelling of 12390012789 in words is "twelve billion, three hundred ninety million, twelve thousand, seven hundred eighty-nine".