12652463340 has 144 divisors (see below), whose sum is σ = 41929655040. Its totient is φ = 3062759040.

The previous prime is 12652463293. The next prime is 12652463357. The reversal of 12652463340 is 4336425621.

12652463340 is a `hidden beast` number, since 12 + 6 + 5 + 2 + 4 + 633 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12652463295 and 12652463304.

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, 1458897 + ... + 1467543.

It is an arithmetic number, because the mean of its divisors is an integer number (291178160).

Almost surely, 2^12652463340 is an apocalyptic number.

12652463340 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 12652463340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20964827520).

12652463340 is an abundant number, since it is smaller than the sum of its proper divisors (29277191700).

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

12652463340 is a wasteful number, since it uses less digits than its factorization.

12652463340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9412 (or 9407 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 12652463340 its reverse (4336425621), we get a palindrome (16988888961).

The spelling of 12652463340 in words is "twelve billion, six hundred fifty-two million, four hundred sixty-three thousand, three hundred forty".