12876821238 has 16 divisors (see below), whose sum is σ = 25907857920. Its totient is φ = 4266571176.

The previous prime is 12876821131. The next prime is 12876821249. The reversal of 12876821238 is 83212867821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6424558 + ... + 6426561.

It is an arithmetic number, because the mean of its divisors is an integer number (1619241120).

Almost surely, 2^12876821238 is an apocalyptic number.

12876821238 is an abundant number, since it is smaller than the sum of its proper divisors (13031036682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12876821238 is a wasteful number, since it uses less digits than its factorization.

12876821238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12851291.

The product of its digits is 516096, while the sum is 48.

The spelling of 12876821238 in words is "twelve billion, eight hundred seventy-six million, eight hundred twenty-one thousand, two hundred thirty-eight".