12913569452863 has 4 divisors (see below), whose sum is σ = 13125267312808. Its totient is φ = 12701871592920.

The previous prime is 12913569452851. The next prime is 12913569452879. The reversal of 12913569452863 is 36825496531921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12913569452863 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12913569452795 and 12913569452804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12913569452803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105848929881 + ... + 105848930002.

It is an arithmetic number, because the mean of its divisors is an integer number (3281316828202).

Almost surely, 2^{12913569452863} is an apocalyptic number.

12913569452863 is a deficient number, since it is larger than the sum of its proper divisors (211697859945).

12913569452863 is an equidigital number, since it uses as much as digits as its factorization.

12913569452863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211697859944.

The product of its digits is 83980800, while the sum is 64.

The spelling of 12913569452863 in words is "twelve trillion, nine hundred thirteen billion, five hundred sixty-nine million, four hundred fifty-two thousand, eight hundred sixty-three".