12469555920 has 160 divisors (see below), whose sum is σ = 39886732800. Its totient is φ = 3220918272.

The previous prime is 12469555919. The next prime is 12469555927. The reversal of 12469555920 is 2955596421.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12469555920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12469555927) 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, 998676 + ... + 1011084.

It is an arithmetic number, because the mean of its divisors is an integer number (249292080).

Almost surely, 2^12469555920 is an apocalyptic number.

12469555920 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 12469555920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19943366400).

12469555920 is an abundant number, since it is smaller than the sum of its proper divisors (27417176880).

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

12469555920 is a wasteful number, since it uses less digits than its factorization.

12469555920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12557 (or 12551 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 12469555920 in words is "twelve billion, four hundred sixty-nine million, five hundred fifty-five thousand, nine hundred twenty".