12443654652 has 192 divisors, whose sum is σ = 35225584128. Its totient is φ = 3368448000.

The previous prime is 12443654651. The next prime is 12443654683. The reversal of 12443654652 is 25645634421.

It is a happy number.

It is a super-2 number, since 2×12443654652² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443654651) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9638127 + ... + 9639417.

It is an arithmetic number, because the mean of its divisors is an integer number (183466584).

Almost surely, 2^12443654652 is an apocalyptic number.

12443654652 is a gapful number since it is divisible by the number (12) 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 12443654652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17612792064).

12443654652 is an abundant number, since it is smaller than the sum of its proper divisors (22781929476).

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

12443654652 is a wasteful number, since it uses less digits than its factorization.

12443654652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500 (or 1498 counting only the distinct ones).

The product of its digits is 691200, while the sum is 42.

The spelling of 12443654652 in words is "twelve billion, four hundred forty-three million, six hundred fifty-four thousand, six hundred fifty-two".