12651276375125 has 16 divisors (see below), whose sum is σ = 15789213768432. Its totient is φ = 10120751323200.

The previous prime is 12651276375121. The next prime is 12651276375223. The reversal of 12651276375125 is 52157367215621.

It can be written as a sum of positive squares in 8 ways, for example, as 8786191150801 + 3865085224324 = 2964151^2 + 1965982^2 .

It is not a de Polignac number, because 12651276375125 - 2² = 12651276375121 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12651276375121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3426767 + ... + 6086483.

It is an arithmetic number, because the mean of its divisors is an integer number (986825860527).

Almost surely, 2^{12651276375125} is an apocalyptic number.

It is an amenable number.

12651276375125 is a deficient number, since it is larger than the sum of its proper divisors (3137937393307).

12651276375125 is an equidigital number, since it uses as much as digits as its factorization.

12651276375125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2697785 (or 2697775 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 53.

The spelling of 12651276375125 in words is "twelve trillion, six hundred fifty-one billion, two hundred seventy-six million, three hundred seventy-five thousand, one hundred twenty-five".