12499895644013 has 16 divisors (see below), whose sum is σ = 12774944345280. Its totient is φ = 12227199868800.

The previous prime is 12499895643941. The next prime is 12499895644073. The reversal of 12499895644013 is 31044659899421.

It is a cyclic number.

It is not a de Polignac number, because 12499895644013 - 2²⁶ = 12499828535149 is a prime.

It is a super-2 number, since 2×12499895644013² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12499895644073) 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, 16214006 + ... + 16967432.

It is an arithmetic number, because the mean of its divisors is an integer number (798434021580).

Almost surely, 2^{12499895644013} is an apocalyptic number.

It is an amenable number.

12499895644013 is a deficient number, since it is larger than the sum of its proper divisors (275048701267).

12499895644013 is a wasteful number, since it uses less digits than its factorization.

12499895644013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754988.

The product of its (nonzero) digits is 67184640, while the sum is 65.

The spelling of 12499895644013 in words is "twelve trillion, four hundred ninety-nine billion, eight hundred ninety-five million, six hundred forty-four thousand, thirteen".