12413447252521 has 16 divisors (see below), whose sum is σ = 14310226229760. Its totient is φ = 10547741664000.

The previous prime is 12413447252497. The next prime is 12413447252533. The reversal of 12413447252521 is 12525274431421.

It is a cyclic number.

It is not a de Polignac number, because 12413447252521 - 2¹¹ = 12413447250473 is a prime.

It is a super-2 number, since 2×12413447252521² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12413447252621) 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, 8311980 + ... + 9691021.

It is an arithmetic number, because the mean of its divisors is an integer number (894389139360).

Almost surely, 2^{12413447252521} is an apocalyptic number.

It is an amenable number.

12413447252521 is a deficient number, since it is larger than the sum of its proper divisors (1896778977239).

12413447252521 is a wasteful number, since it uses less digits than its factorization.

12413447252521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18003864.

The product of its digits is 537600, while the sum is 43.

The spelling of 12413447252521 in words is "twelve trillion, four hundred thirteen billion, four hundred forty-seven million, two hundred fifty-two thousand, five hundred twenty-one".