12493828921 has 8 divisors (see below), whose sum is σ = 15118583040. Its totient is φ = 10079055168.

The previous prime is 12493828903. The next prime is 12493828937. The reversal of 12493828921 is 12982839421.

It is a happy number.

12493828921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12493828921 - 2⁷ = 12493828793 is a prime.

It is a super-2 number, since 2×12493828921² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12493828901) 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 7 ways as a sum of consecutive naturals, for example, 52494961 + ... + 52495198.

It is an arithmetic number, because the mean of its divisors is an integer number (1889822880).

Almost surely, 2^12493828921 is an apocalyptic number.

It is an amenable number.

12493828921 is a deficient number, since it is larger than the sum of its proper divisors (2624754119).

12493828921 is a wasteful number, since it uses less digits than its factorization.

12493828921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104990183.

The product of its digits is 497664, while the sum is 49.

The spelling of 12493828921 in words is "twelve billion, four hundred ninety-three million, eight hundred twenty-eight thousand, nine hundred twenty-one".