12814885693 has 4 divisors (see below), whose sum is σ = 12823598848. Its totient is φ = 12806172540.

The previous prime is 12814885649. The next prime is 12814885729. The reversal of 12814885693 is 39658841821.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39658841821 = 43 ⋅922298647.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12814885693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12814885393) 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, 4354371 + ... + 4357312.

It is an arithmetic number, because the mean of its divisors is an integer number (3205899712).

Almost surely, 2^12814885693 is an apocalyptic number.

It is an amenable number.

12814885693 is a deficient number, since it is larger than the sum of its proper divisors (8713155).

12814885693 is an equidigital number, since it uses as much as digits as its factorization.

12814885693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8713154.

The product of its digits is 3317760, while the sum is 55.

The spelling of 12814885693 in words is "twelve billion, eight hundred fourteen million, eight hundred eighty-five thousand, six hundred ninety-three".