12492449369 has 4 divisors (see below), whose sum is σ = 12507892020. Its totient is φ = 12477006720.

The previous prime is 12492449363. The next prime is 12492449377. The reversal of 12492449369 is 96394429421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96394429421 = 24691 ⋅3904031.

It can be written as a sum of positive squares in 2 ways, for example, as 11769646144 + 722803225 = 108488^2 + 26885^2 .

It is a cyclic number.

It is not a de Polignac number, because 12492449369 - 2⁸ = 12492449113 is a prime.

It is a super-3 number, since 3×12492449369³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 12492449369.

It is not an unprimeable number, because it can be changed into a prime (12492449363) 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, 7720112 + ... + 7721729.

It is an arithmetic number, because the mean of its divisors is an integer number (3126973005).

Almost surely, 2^12492449369 is an apocalyptic number.

It is an amenable number.

12492449369 is a deficient number, since it is larger than the sum of its proper divisors (15442651).

12492449369 is an equidigital number, since it uses as much as digits as its factorization.

12492449369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15442650.

The product of its digits is 3359232, while the sum is 53.

The spelling of 12492449369 in words is "twelve billion, four hundred ninety-two million, four hundred forty-nine thousand, three hundred sixty-nine".