12821924359 has 4 divisors (see below), whose sum is σ = 12823827016. Its totient is φ = 12820021704.

The previous prime is 12821924351. The next prime is 12821924369. The reversal of 12821924359 is 95342912821.

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 12821924359 - 2³ = 12821924351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12821924351) 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, 941184 + ... + 954709.

It is an arithmetic number, because the mean of its divisors is an integer number (3205956754).

Almost surely, 2^12821924359 is an apocalyptic number.

12821924359 is a deficient number, since it is larger than the sum of its proper divisors (1902657).

12821924359 is an equidigital number, since it uses as much as digits as its factorization.

12821924359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902656.

The product of its digits is 311040, while the sum is 46.

The spelling of 12821924359 in words is "twelve billion, eight hundred twenty-one million, nine hundred twenty-four thousand, three hundred fifty-nine".