12741867744638 has 16 divisors (see below), whose sum is σ = 19355042604480. Its totient is φ = 6290189433216.

The previous prime is 12741867744637. The next prime is 12741867744643. The reversal of 12741867744638 is 83644776814721.

12741867744638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12741867744631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9909506 + ... + 11121242.

It is an arithmetic number, because the mean of its divisors is an integer number (1209690162780).

Almost surely, 2^{12741867744638} is an apocalyptic number.

12741867744638 is a deficient number, since it is larger than the sum of its proper divisors (6613174859842).

12741867744638 is a wasteful number, since it uses less digits than its factorization.

12741867744638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278371.

The product of its digits is 303464448, while the sum is 68.

The spelling of 12741867744638 in words is "twelve trillion, seven hundred forty-one billion, eight hundred sixty-seven million, seven hundred forty-four thousand, six hundred thirty-eight".