12756460132040 has 32 divisors (see below), whose sum is σ = 28702310689080. Its totient is φ = 5102535094272.

The previous prime is 12756460132019. The next prime is 12756460132043. The reversal of 12756460132040 is 4023106465721.

It can be written as a sum of positive squares in 4 ways, for example, as 7170923468164 + 5585536663876 = 2677858^2 + 2363374^2 .

It is not an unprimeable number, because it can be changed into a prime (12756460132043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2845544 + ... + 5797416.

Almost surely, 2^{12756460132040} is an apocalyptic number.

12756460132040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12756460132040 is an abundant number, since it is smaller than the sum of its proper divisors (15945850557040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12756460132040 is a wasteful number, since it uses less digits than its factorization.

12756460132040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3059921 (or 3059917 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

Adding to 12756460132040 its reverse (4023106465721), we get a palindrome (16779566597761).

The spelling of 12756460132040 in words is "twelve trillion, seven hundred fifty-six billion, four hundred sixty million, one hundred thirty-two thousand, forty".