12535466453521 has 8 divisors (see below), whose sum is σ = 13718193289344. Its totient is φ = 11359929447120.

The previous prime is 12535466453513. The next prime is 12535466453527.

12535466453521 is nontrivially palindromic in base 10.

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 12535466453521 - 2³ = 12535466453513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12535466453527) 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, 1797453705 + ... + 1797460678.

It is an arithmetic number, because the mean of its divisors is an integer number (1714774161168).

Almost surely, 2^{12535466453521} is an apocalyptic number.

12535466453521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12535466453521 is a deficient number, since it is larger than the sum of its proper divisors (1182726835823).

12535466453521 is a wasteful number, since it uses less digits than its factorization.

12535466453521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3594914711.

The product of its digits is 12960000, while the sum is 52.

The spelling of 12535466453521 in words is "twelve trillion, five hundred thirty-five billion, four hundred sixty-six million, four hundred fifty-three thousand, five hundred twenty-one".