12825071999 has 4 divisors (see below), whose sum is σ = 12942733320. Its totient is φ = 12707410680.

The previous prime is 12825071879. The next prime is 12825072059. The reversal of 12825071999 is 99917052821.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99917052821 = 191 ⋅523125931.

It is a cyclic number.

It is not a de Polignac number, because 12825071999 - 2²⁴ = 12808294783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12825071999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12825071299) 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, 58830497 + ... + 58830714.

It is an arithmetic number, because the mean of its divisors is an integer number (3235683330).

Almost surely, 2^12825071999 is an apocalyptic number.

12825071999 is a deficient number, since it is larger than the sum of its proper divisors (117661321).

12825071999 is a wasteful number, since it uses less digits than its factorization.

12825071999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117661320.

The product of its (nonzero) digits is 816480, while the sum is 53.

The spelling of 12825071999 in words is "twelve billion, eight hundred twenty-five million, seventy-one thousand, nine hundred ninety-nine".