12751376666405 has 16 divisors (see below), whose sum is σ = 16481117896320. Its totient is φ = 9415020806208.

The previous prime is 12751376666383. The next prime is 12751376666407. The reversal of 12751376666405 is 50466667315721.

It is a cyclic number.

It is not a de Polignac number, because 12751376666405 - 2¹⁰ = 12751376665381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12751376666407) 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 15 ways as a sum of consecutive naturals, for example, 13932515 + ... + 14819504.

It is an arithmetic number, because the mean of its divisors is an integer number (1030069868520).

Almost surely, 2^{12751376666405} is an apocalyptic number.

It is an amenable number.

12751376666405 is a deficient number, since it is larger than the sum of its proper divisors (3729741229915).

12751376666405 is a wasteful number, since it uses less digits than its factorization.

12751376666405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28758860.

The product of its (nonzero) digits is 38102400, while the sum is 59.

The spelling of 12751376666405 in words is "twelve trillion, seven hundred fifty-one billion, three hundred seventy-six million, six hundred sixty-six thousand, four hundred five".