12839019040 has 24 divisors (see below), whose sum is σ = 30332182860. Its totient is φ = 5135607552.

The previous prime is 12839019013. The next prime is 12839019043. The reversal of 12839019040 is 4091093821.

It can be written as a sum of positive squares in 2 ways, for example, as 12813334416 + 25684624 = 113196^2 + 5068^2 .

It is not an unprimeable number, because it can be changed into a prime (12839019043) 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, 40121775 + ... + 40122094.

Almost surely, 2^12839019040 is an apocalyptic number.

12839019040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12839019040 is an abundant number, since it is smaller than the sum of its proper divisors (17493163820).

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

12839019040 is an equidigital number, since it uses as much as digits as its factorization.

12839019040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80243884 (or 80243876 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 12839019040 in words is "twelve billion, eight hundred thirty-nine million, nineteen thousand, forty".