12903384648 has 128 divisors (see below), whose sum is σ = 40633528320. Its totient is φ = 3316930560.

The previous prime is 12903384643. The next prime is 12903384661. The reversal of 12903384648 is 84648330921.

It is a junction number, because it is equal to n+sod(n) for n = 12903384597 and 12903384606.

It is not an unprimeable number, because it can be changed into a prime (12903384643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143265 + ... + 215247.

It is an arithmetic number, because the mean of its divisors is an integer number (317449440).

Almost surely, 2^12903384648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12903384648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20316764160).

12903384648 is an abundant number, since it is smaller than the sum of its proper divisors (27730143672).

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

12903384648 is a wasteful number, since it uses less digits than its factorization.

12903384648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72107 (or 72103 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 12903384648 in words is "twelve billion, nine hundred three million, three hundred eighty-four thousand, six hundred forty-eight".