12921747481741 has 16 divisors (see below), whose sum is σ = 14809850787456. Its totient is φ = 11044221034176.

The previous prime is 12921747481739. The next prime is 12921747481751. The reversal of 12921747481741 is 14718474712921.

It is a cyclic number.

It is not a de Polignac number, because 12921747481741 - 2¹ = 12921747481739 is a prime.

It is a super-4 number, since 4×12921747481741⁴ (a number of 54 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12921747481751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1942555 + ... + 5442151.

It is an arithmetic number, because the mean of its divisors is an integer number (925615674216).

Almost surely, 2^{12921747481741} is an apocalyptic number.

It is an amenable number.

12921747481741 is a deficient number, since it is larger than the sum of its proper divisors (1888103305715).

12921747481741 is an equidigital number, since it uses as much as digits as its factorization.

12921747481741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3501108.

The product of its digits is 6322176, while the sum is 58.

The spelling of 12921747481741 in words is "twelve trillion, nine hundred twenty-one billion, seven hundred forty-seven million, four hundred eighty-one thousand, seven hundred forty-one".