12854133831 has 64 divisors (see below), whose sum is σ = 21953534976. Its totient is φ = 6550727040.

The previous prime is 12854133827. The next prime is 12854133833. The reversal of 12854133831 is 13833145821.

It is a happy number.

12854133831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12854133831 - 2² = 12854133827 is a prime.

It is a super-2 number, since 2×12854133831² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12854133831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12854133833) 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 63 ways as a sum of consecutive naturals, for example, 1477065 + ... + 1485741.

It is an arithmetic number, because the mean of its divisors is an integer number (343023984).

Almost surely, 2^12854133831 is an apocalyptic number.

12854133831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12854133831 is a deficient number, since it is larger than the sum of its proper divisors (9099401145).

12854133831 is an equidigital number, since it uses as much as digits as its factorization.

12854133831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8773 (or 8751 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The spelling of 12854133831 in words is "twelve billion, eight hundred fifty-four million, one hundred thirty-three thousand, eight hundred thirty-one".