12439913808 has 60 divisors (see below), whose sum is σ = 37383217440. Its totient is φ = 3554260416.

The previous prime is 12439913807. The next prime is 12439913809. The reversal of 12439913808 is 80831993421.

It is an interprime number because it is at equal distance from previous prime (12439913807) and next prime (12439913809).

It is a super-3 number, since 3×12439913808³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12439913807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2642188 + ... + 2646891.

It is an arithmetic number, because the mean of its divisors is an integer number (623053624).

Almost surely, 2^12439913808 is an apocalyptic number.

It is an amenable number.

12439913808 is an abundant number, since it is smaller than the sum of its proper divisors (24943303632).

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

12439913808 is a wasteful number, since it uses less digits than its factorization.

12439913808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5289104 (or 5289091 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The spelling of 12439913808 in words is "twelve billion, four hundred thirty-nine million, nine hundred thirteen thousand, eight hundred eight".