12802997499 has 4 divisors (see below), whose sum is σ = 17070663336. Its totient is φ = 8535331664.

The previous prime is 12802997437. The next prime is 12802997503. The reversal of 12802997499 is 99479920821.

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

It is a cyclic number.

It is not a de Polignac number, because 12802997499 - 2⁸ = 12802997243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12802997419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2133832914 + ... + 2133832919.

It is an arithmetic number, because the mean of its divisors is an integer number (4267665834).

Almost surely, 2^12802997499 is an apocalyptic number.

12802997499 is a deficient number, since it is larger than the sum of its proper divisors (4267665837).

12802997499 is an equidigital number, since it uses as much as digits as its factorization.

12802997499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4267665836.

The product of its (nonzero) digits is 5878656, while the sum is 60.

The spelling of 12802997499 in words is "twelve billion, eight hundred two million, nine hundred ninety-seven thousand, four hundred ninety-nine".