12731927756197 has 8 divisors (see below), whose sum is σ = 14184110498040. Its totient is φ = 11347288397760.

The previous prime is 12731927756147. The next prime is 12731927756281. The reversal of 12731927756197 is 79165772913721.

It can be written as a sum of positive squares in 4 ways, for example, as 6790748836 + 12725137007361 = 82406^2 + 3567231^2 .

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 12731927756197 - 2⁷ = 12731927756069 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 (12731927756147) 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 7 ways as a sum of consecutive naturals, for example, 16885845454 + ... + 16885846207.

It is an arithmetic number, because the mean of its divisors is an integer number (1773013812255).

Almost surely, 2^{12731927756197} is an apocalyptic number.

It is an amenable number.

12731927756197 is a deficient number, since it is larger than the sum of its proper divisors (1452182741843).

12731927756197 is a wasteful number, since it uses less digits than its factorization.

12731927756197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33771691703.

The product of its digits is 70013160, while the sum is 67.

The spelling of 12731927756197 in words is "twelve trillion, seven hundred thirty-one billion, nine hundred twenty-seven million, seven hundred fifty-six thousand, one hundred ninety-seven".