12700440013521 has 8 divisors (see below), whose sum is σ = 18236529250240. Its totient is φ = 7815655392912.

The previous prime is 12700440013519. The next prime is 12700440013531. The reversal of 12700440013521 is 12531004400721.

12700440013521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12700440013521 - 2¹ = 12700440013519 is a prime.

It is a super-2 number, since 2×12700440013521² (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 (12700440013531) 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, 162826153981 + ... + 162826154058.

It is an arithmetic number, because the mean of its divisors is an integer number (2279566156280).

Almost surely, 2^{12700440013521} is an apocalyptic number.

It is an amenable number.

12700440013521 is a deficient number, since it is larger than the sum of its proper divisors (5536089236719).

12700440013521 is a wasteful number, since it uses less digits than its factorization.

12700440013521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325652308055.

The product of its (nonzero) digits is 6720, while the sum is 30.

The spelling of 12700440013521 in words is "twelve trillion, seven hundred billion, four hundred forty million, thirteen thousand, five hundred twenty-one".