12803783520 has 384 divisors, whose sum is σ = 46715719680. Its totient is φ = 2917038080.

The previous prime is 12803783483. The next prime is 12803783537. The reversal of 12803783520 is 2538730821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7164067 + ... + 7165853.

It is an arithmetic number, because the mean of its divisors is an integer number (121655520).

Almost surely, 2^12803783520 is an apocalyptic number.

12803783520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12803783520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23357859840).

12803783520 is an abundant number, since it is smaller than the sum of its proper divisors (33911936160).

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

12803783520 is a wasteful number, since it uses less digits than its factorization.

12803783520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898 (or 1890 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 12803783520 in words is "twelve billion, eight hundred three million, seven hundred eighty-three thousand, five hundred twenty".