12746040007427 has 2 divisors, whose sum is σ = 12746040007428. Its totient is φ = 12746040007426.

The previous prime is 12746040007399. The next prime is 12746040007531. The reversal of 12746040007427 is 72470004064721.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12746040007427 is a prime.

It is not a weakly prime, because it can be changed into another prime (12746040000427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6373020003713 + 6373020003714.

It is an arithmetic number, because the mean of its divisors is an integer number (6373020003714).

Almost surely, 2^{12746040007427} is an apocalyptic number.

12746040007427 is a deficient number, since it is larger than the sum of its proper divisors (1).

12746040007427 is an equidigital number, since it uses as much as digits as its factorization.

12746040007427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 526848, while the sum is 44.

The spelling of 12746040007427 in words is "twelve trillion, seven hundred forty-six billion, forty million, seven thousand, four hundred twenty-seven".