12563848920 has 192 divisors, whose sum is σ = 43976740320. Its totient is φ = 2863128576.

The previous prime is 12563848903. The next prime is 12563848937. The reversal of 12563848920 is 2984836521.

It is an interprime number because it is at equal distance from previous prime (12563848903) and next prime (12563848937).

It is a self number, because there is not a number n which added to its sum of digits gives 12563848920.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2072614 + ... + 2078666.

Almost surely, 2^12563848920 is an apocalyptic number.

12563848920 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 12563848920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21988370160).

12563848920 is an abundant number, since it is smaller than the sum of its proper divisors (31412891400).

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

12563848920 is a wasteful number, since it uses less digits than its factorization.

12563848920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6434 (or 6423 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 12563848920 in words is "twelve billion, five hundred sixty-three million, eight hundred forty-eight thousand, nine hundred twenty".