12563187507 has 32 divisors (see below), whose sum is σ = 20318446400. Its totient is φ = 7625270016.

The previous prime is 12563187491. The next prime is 12563187517. The reversal of 12563187507 is 70578136521.

It is a happy number.

12563187507 is a `hidden beast` number, since 1 + 2 + 5 + 63 + 1 + 87 + 507 = 666.

It is not a de Polignac number, because 12563187507 - 2⁴ = 12563187491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12563187517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219532 + ... + 270777.

It is an arithmetic number, because the mean of its divisors is an integer number (634951450).

Almost surely, 2^12563187507 is an apocalyptic number.

12563187507 is a deficient number, since it is larger than the sum of its proper divisors (7755258893).

12563187507 is a wasteful number, since it uses less digits than its factorization.

12563187507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490404 (or 490398 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The spelling of 12563187507 in words is "twelve billion, five hundred sixty-three million, one hundred eighty-seven thousand, five hundred seven".