12389025636 has 81 divisors (see below), whose sum is σ = 33934767321. Its totient is φ = 3809336544.

The previous prime is 12389025629. The next prime is 12389025673. The reversal of 12389025636 is 63652098321.

The square root of 12389025636 is 111306.

It is a perfect power (a square), and thus also a powerful number.

12389025636 is a `hidden beast` number, since 1 + 2 + 3 + 8 + 9 + 0 + 2 + 5 + 636 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1832696100 + 10556329536 = 42810^2 + 102744^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12389025591 and 12389025600.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8681155 + ... + 8682581.

Almost surely, 2^12389025636 is an apocalyptic number.

12389025636 is the 111306-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12389025636

12389025636 is an abundant number, since it is smaller than the sum of its proper divisors (21545741685).

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

12389025636 is a wasteful number, since it uses less digits than its factorization.

12389025636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890 (or 1445 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 12389025636 in words is "twelve billion, three hundred eighty-nine million, twenty-five thousand, six hundred thirty-six".