13126134650 has 12 divisors (see below), whose sum is σ = 24414610542. Its totient is φ = 5250453840.

The previous prime is 13126134643. The next prime is 13126134653. The reversal of 13126134650 is 5643162131.

It can be written as a sum of positive squares in 3 ways, for example, as 5981320921 + 7144813729 = 77339^2 + 84527^2 .

It is not an unprimeable number, because it can be changed into a prime (13126134653) 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, 131261297 + ... + 131261396.

Almost surely, 2^13126134650 is an apocalyptic number.

13126134650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13126134650 is a deficient number, since it is larger than the sum of its proper divisors (11288475892).

13126134650 is a wasteful number, since it uses less digits than its factorization.

13126134650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262522705 (or 262522700 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 13126134650 its reverse (5643162131), we get a palindrome (18769296781).

The spelling of 13126134650 in words is "thirteen billion, one hundred twenty-six million, one hundred thirty-four thousand, six hundred fifty".