12522644650 has 12 divisors (see below), whose sum is σ = 23292119142. Its totient is φ = 5009057840.

The previous prime is 12522644647. The next prime is 12522644663. The reversal of 12522644650 is 5644622521.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 9412686361 + 3109958289 = 97019^2 + 55767^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125226397 + ... + 125226496.

Almost surely, 2^12522644650 is an apocalyptic number.

12522644650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12522644650 is a deficient number, since it is larger than the sum of its proper divisors (10769474492).

12522644650 is a wasteful number, since it uses less digits than its factorization.

12522644650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250452905 (or 250452900 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 12522644650 in words is "twelve billion, five hundred twenty-two million, six hundred forty-four thousand, six hundred fifty".