12605246836 has 192 divisors, whose sum is σ = 31311705600. Its totient is φ = 4291854336.

The previous prime is 12605246803. The next prime is 12605246861. The reversal of 12605246836 is 63864250621.

12605246836 = 10233² + 10234² + ... + 10351².

It is a junction number, because it is equal to n+sod(n) for n = 12605246792 and 12605246801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3407740 + ... + 3411436.

It is an arithmetic number, because the mean of its divisors is an integer number (163081800).

Almost surely, 2^12605246836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12605246836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15655852800).

12605246836 is an abundant number, since it is smaller than the sum of its proper divisors (18706458764).

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

12605246836 is a wasteful number, since it uses less digits than its factorization.

12605246836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3786 (or 3784 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 12605246836 in words is "twelve billion, six hundred five million, two hundred forty-six thousand, eight hundred thirty-six".