12608402650 has 12 divisors (see below), whose sum is σ = 23451629022. Its totient is φ = 5043361040.

The previous prime is 12608402633. The next prime is 12608402657. The reversal of 12608402650 is 5620480621.

It can be written as a sum of positive squares in 3 ways, for example, as 8572722921 + 4035679729 = 92589^2 + 63527^2 .

It is not an unprimeable number, because it can be changed into a prime (12608402657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126083977 + ... + 126084076.

Almost surely, 2^12608402650 is an apocalyptic number.

12608402650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12608402650 is a deficient number, since it is larger than the sum of its proper divisors (10843226372).

12608402650 is a wasteful number, since it uses less digits than its factorization.

12608402650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252168065 (or 252168060 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 12608402650 in words is "twelve billion, six hundred eight million, four hundred two thousand, six hundred fifty".