12896947541 has 8 divisors (see below), whose sum is σ = 14126474520. Its totient is φ = 11719740928.

The previous prime is 12896947537. The next prime is 12896947571. The reversal of 12896947541 is 14574969821.

12896947541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3950625316 + 8946322225 = 62854^2 + 94585^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12896947541 - 2² = 12896947537 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12896947571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13079576 + ... + 13080561.

It is an arithmetic number, because the mean of its divisors is an integer number (1765809315).

Almost surely, 2^12896947541 is an apocalyptic number.

It is an amenable number.

12896947541 is a deficient number, since it is larger than the sum of its proper divisors (1229526979).

12896947541 is a wasteful number, since it uses less digits than its factorization.

12896947541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26160183.

The product of its digits is 4354560, while the sum is 56.

The spelling of 12896947541 in words is "twelve billion, eight hundred ninety-six million, nine hundred forty-seven thousand, five hundred forty-one".