12506362563 has 16 divisors (see below), whose sum is σ = 17524111616. Its totient is φ = 7923575520.

The previous prime is 12506362559. The next prime is 12506362577. The reversal of 12506362563 is 36526360521.

It is not a de Polignac number, because 12506362563 - 2² = 12506362559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12506366563) 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, 1305343 + ... + 1314888.

It is an arithmetic number, because the mean of its divisors is an integer number (1095256976).

Almost surely, 2^12506362563 is an apocalyptic number.

12506362563 is a deficient number, since it is larger than the sum of its proper divisors (5017749053).

12506362563 is a wasteful number, since it uses less digits than its factorization.

12506362563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2620314.

The product of its (nonzero) digits is 194400, while the sum is 39.

The spelling of 12506362563 in words is "twelve billion, five hundred six million, three hundred sixty-two thousand, five hundred sixty-three".