12493828421 has 8 divisors (see below), whose sum is σ = 12518841600. Its totient is φ = 12468841840.

The previous prime is 12493828397. The next prime is 12493828429. The reversal of 12493828421 is 12482839421.

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

It is a cyclic number.

It is not a de Polignac number, because 12493828421 - 2³⁰ = 11420086597 is a prime.

It is a super-2 number, since 2×12493828421² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12493828429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1114040 + ... + 1125198.

It is an arithmetic number, because the mean of its divisors is an integer number (1564855200).

Almost surely, 2^12493828421 is an apocalyptic number.

It is an amenable number.

12493828421 is a deficient number, since it is larger than the sum of its proper divisors (25013179).

12493828421 is a wasteful number, since it uses less digits than its factorization.

12493828421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13299.

The product of its digits is 221184, while the sum is 44.

The spelling of 12493828421 in words is "twelve billion, four hundred ninety-three million, eight hundred twenty-eight thousand, four hundred twenty-one".