12882367909 has 4 divisors (see below), whose sum is σ = 12882709804. Its totient is φ = 12882026016.

The previous prime is 12882367879. The next prime is 12882367931. The reversal of 12882367909 is 90976328821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1640007009 + 11242360900 = 40497^2 + 106030^2 .

It is a cyclic number.

It is not a de Polignac number, because 12882367909 - 2⁵ = 12882367877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12882367909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12882367709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106272 + ... + 192505.

It is an arithmetic number, because the mean of its divisors is an integer number (3220677451).

Almost surely, 2^12882367909 is an apocalyptic number.

It is an amenable number.

12882367909 is a deficient number, since it is larger than the sum of its proper divisors (341895).

12882367909 is an equidigital number, since it uses as much as digits as its factorization.

12882367909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341894.

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 12882367909 in words is "twelve billion, eight hundred eighty-two million, three hundred sixty-seven thousand, nine hundred nine".