12503605768 has 8 divisors (see below), whose sum is σ = 23444260830. Its totient is φ = 6251802880.

The previous prime is 12503605753. The next prime is 12503605771. The reversal of 12503605768 is 86750630521.

It can be written as a sum of positive squares in only one way, i.e., 7177817284 + 5325788484 = 84722^2 + 72978^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 781475353 + ... + 781475368.

Almost surely, 2^12503605768 is an apocalyptic number.

It is an amenable number.

12503605768 is a deficient number, since it is larger than the sum of its proper divisors (10940655062).

12503605768 is a wasteful number, since it uses less digits than its factorization.

12503605768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562950727 (or 1562950723 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 12503605768 in words is "twelve billion, five hundred three million, six hundred five thousand, seven hundred sixty-eight".