12736454387 has 2 divisors, whose sum is σ = 12736454388. Its totient is φ = 12736454386.

The previous prime is 12736454371. The next prime is 12736454411. The reversal of 12736454387 is 78345463721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12736454387 - 2⁴ = 12736454371 is a prime.

It is not a weakly prime, because it can be changed into another prime (12736454287) 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 as a sum of consecutive naturals, namely, 6368227193 + 6368227194.

It is an arithmetic number, because the mean of its divisors is an integer number (6368227194).

Almost surely, 2^12736454387 is an apocalyptic number.

12736454387 is a deficient number, since it is larger than the sum of its proper divisors (1).

12736454387 is an equidigital number, since it uses as much as digits as its factorization.

12736454387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386880, while the sum is 50.

The spelling of 12736454387 in words is "twelve billion, seven hundred thirty-six million, four hundred fifty-four thousand, three hundred eighty-seven".