12501563267 has 16 divisors (see below), whose sum is σ = 13219200000. Its totient is φ = 11798998464.

The previous prime is 12501563251. The next prime is 12501563279. The reversal of 12501563267 is 76236510521.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12501563267 - 2⁴ = 12501563251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12501563267.

It is not an unprimeable number, because it can be changed into a prime (12501563237) 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, 1015334 + ... + 1027572.

It is an arithmetic number, because the mean of its divisors is an integer number (826200000).

Almost surely, 2^12501563267 is an apocalyptic number.

12501563267 is a deficient number, since it is larger than the sum of its proper divisors (717636733).

12501563267 is a wasteful number, since it uses less digits than its factorization.

12501563267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12850.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 12501563267 in words is "twelve billion, five hundred one million, five hundred sixty-three thousand, two hundred sixty-seven".