12690440175 has 36 divisors (see below), whose sum is σ = 24407090376. Its totient is φ = 5801342400.

The previous prime is 12690440173. The next prime is 12690440207. The reversal of 12690440175 is 57104409621.

It is not a de Polignac number, because 12690440175 - 2¹ = 12690440173 is a prime.

It is a super-2 number, since 2×12690440175² (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 (12690440173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1722916 + ... + 1730265.

Almost surely, 2^12690440175 is an apocalyptic number.

12690440175 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12690440175 is a deficient number, since it is larger than the sum of its proper divisors (11716650201).

12690440175 is a wasteful number, since it uses less digits than its factorization.

12690440175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3453208 (or 3453196 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

Adding to 12690440175 its reverse (57104409621), we get a palindrome (69794849796).

The spelling of 12690440175 in words is "twelve billion, six hundred ninety million, four hundred forty thousand, one hundred seventy-five".