12008828491 has 4 divisors (see below), whose sum is σ = 13100540184. Its totient is φ = 10917116800.

The previous prime is 12008828479. The next prime is 12008828497. The reversal of 12008828491 is 19482880021.

12008828491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-12008828491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12008828497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545855830 + ... + 545855851.

It is an arithmetic number, because the mean of its divisors is an integer number (3275135046).

Almost surely, 2^12008828491 is an apocalyptic number.

12008828491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12008828491 is a deficient number, since it is larger than the sum of its proper divisors (1091711693).

12008828491 is a wasteful number, since it uses less digits than its factorization.

12008828491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091711692.

The product of its (nonzero) digits is 73728, while the sum is 43.

The spelling of 12008828491 in words is "twelve billion, eight million, eight hundred twenty-eight thousand, four hundred ninety-one".