12359921800 has 192 divisors, whose sum is σ = 31839480000. Its totient is φ = 4443264000.

The previous prime is 12359921779. The next prime is 12359921803. The reversal of 12359921800 is 812995321.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (12359921803) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6500850 + ... + 6502750.

It is an arithmetic number, because the mean of its divisors is an integer number (165830625).

Almost surely, 2^12359921800 is an apocalyptic number.

12359921800 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 12359921800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15919740000).

12359921800 is an abundant number, since it is smaller than the sum of its proper divisors (19479558200).

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

12359921800 is a wasteful number, since it uses less digits than its factorization.

12359921800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024 (or 2015 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 12359921800 in words is "twelve billion, three hundred fifty-nine million, nine hundred twenty-one thousand, eight hundred".