12815886244 has 24 divisors (see below), whose sum is σ = 25940593728. Its totient is φ = 5426346720.

The previous prime is 12815886241. The next prime is 12815886253. The reversal of 12815886244 is 44268851821.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12815886241) 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, 2754967 + ... + 2759614.

It is an arithmetic number, because the mean of its divisors is an integer number (1080858072).

Almost surely, 2^12815886244 is an apocalyptic number.

12815886244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12815886244 is an abundant number, since it is smaller than the sum of its proper divisors (13124707484).

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

12815886244 is a wasteful number, since it uses less digits than its factorization.

12815886244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5514675 (or 5514673 counting only the distinct ones).

The product of its digits is 983040, while the sum is 49.

The spelling of 12815886244 in words is "twelve billion, eight hundred fifteen million, eight hundred eighty-six thousand, two hundred forty-four".