12858852421 has 8 divisors (see below), whose sum is σ = 13524102144. Its totient is φ = 12209255760.

The previous prime is 12858852401. The next prime is 12858852431. The reversal of 12858852421 is 12425885821.

12858852421 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 12858852421 - 2¹⁵ = 12858819653 is a prime.

It is a super-2 number, since 2×12858852421² (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 (12858852401) 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, 3911581 + ... + 3914866.

It is an arithmetic number, because the mean of its divisors is an integer number (1690512768).

Almost surely, 2^12858852421 is an apocalyptic number.

It is an amenable number.

12858852421 is a deficient number, since it is larger than the sum of its proper divisors (665249723).

12858852421 is an equidigital number, since it uses as much as digits as its factorization.

12858852421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7826531.

The product of its digits is 409600, while the sum is 46.

The spelling of 12858852421 in words is "twelve billion, eight hundred fifty-eight million, eight hundred fifty-two thousand, four hundred twenty-one".