12687550353 has 6 divisors (see below), whose sum is σ = 18326461634. Its totient is φ = 8458366896.

The previous prime is 12687550301. The next prime is 12687550361. The reversal of 12687550353 is 35305578621.

12687550353 is a `hidden beast` number, since 1 + 2 + 68 + 7 + 550 + 35 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6963568704 + 5723981649 = 83448^2 + 75657^2 .

It is not a de Polignac number, because 12687550353 - 2⁶ = 12687550289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12687550299 and 12687550308.

It is not an unprimeable number, because it can be changed into a prime (12687550363) 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, 704863900 + ... + 704863917.

Almost surely, 2^12687550353 is an apocalyptic number.

It is an amenable number.

12687550353 is a deficient number, since it is larger than the sum of its proper divisors (5638911281).

12687550353 is a wasteful number, since it uses less digits than its factorization.

12687550353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409727823 (or 1409727820 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The spelling of 12687550353 in words is "twelve billion, six hundred eighty-seven million, five hundred fifty thousand, three hundred fifty-three".