12504449117 has 8 divisors (see below), whose sum is σ = 12573257400. Its totient is φ = 12435695104.

The previous prime is 12504449101. The next prime is 12504449143. The reversal of 12504449117 is 71194440521.

It can be written as a sum of positive squares in 4 ways, for example, as 7315551961 + 5188897156 = 85531^2 + 72034^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12504449117 - 2⁴ = 12504449101 is a prime.

It is a super-2 number, since 2×12504449117² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12504449317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501809 + ... + 526137.

It is an arithmetic number, because the mean of its divisors is an integer number (1571657175).

Almost surely, 2^12504449117 is an apocalyptic number.

It is an amenable number.

12504449117 is a deficient number, since it is larger than the sum of its proper divisors (68808283).

12504449117 is a wasteful number, since it uses less digits than its factorization.

12504449117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27135.

The product of its (nonzero) digits is 40320, while the sum is 38.

Adding to 12504449117 its reverse (71194440521), we get a palindrome (83698889638).

The spelling of 12504449117 in words is "twelve billion, five hundred four million, four hundred forty-nine thousand, one hundred seventeen".