12511946963 has 16 divisors (see below), whose sum is σ = 13318344000. Its totient is φ = 11735068800.

The previous prime is 12511946947. The next prime is 12511946971. The reversal of 12511946963 is 36964911521.

It is a happy number.

12511946963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12511946963 - 2⁴ = 12511946947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12511940963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114938 + ... + 195536.

It is an arithmetic number, because the mean of its divisors is an integer number (832396500).

Almost surely, 2^12511946963 is an apocalyptic number.

12511946963 is a deficient number, since it is larger than the sum of its proper divisors (806397037).

12511946963 is a wasteful number, since it uses less digits than its factorization.

12511946963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80782.

The product of its digits is 349920, while the sum is 47.

The spelling of 12511946963 in words is "twelve billion, five hundred eleven million, nine hundred forty-six thousand, nine hundred sixty-three".