12908745663 has 16 divisors (see below), whose sum is σ = 18962266752. Its totient is φ = 7746020000.

The previous prime is 12908745637. The next prime is 12908745679. The reversal of 12908745663 is 36654780921.

It is a cyclic number.

It is not a de Polignac number, because 12908745663 - 2⁹ = 12908745151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12908745613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1933173 + ... + 1939838.

It is an arithmetic number, because the mean of its divisors is an integer number (1185141672).

It is a 1-persistent number, because it is pandigital, but 2⋅12908745663 = 25817491326 is not.

Almost surely, 2^12908745663 is an apocalyptic number.

12908745663 is a deficient number, since it is larger than the sum of its proper divisors (6053521089).

12908745663 is a wasteful number, since it uses less digits than its factorization.

12908745663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3873126.

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 12908745663 in words is "twelve billion, nine hundred eight million, seven hundred forty-five thousand, six hundred sixty-three".