12463161881 has 4 divisors (see below), whose sum is σ = 12800004132. Its totient is φ = 12126319632.

The previous prime is 12463161863. The next prime is 12463161883. The reversal of 12463161881 is 18816136421.

12463161881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18816136421 = 1483 ⋅12687887.

It can be written as a sum of positive squares in 2 ways, for example, as 12104400400 + 358761481 = 110020^2 + 18941^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12463161881 is a prime.

It is a super-2 number, since 2×12463161881² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12463161883) 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 3 ways as a sum of consecutive naturals, for example, 168421070 + ... + 168421143.

It is an arithmetic number, because the mean of its divisors is an integer number (3200001033).

Almost surely, 2^12463161881 is an apocalyptic number.

It is an amenable number.

12463161881 is a deficient number, since it is larger than the sum of its proper divisors (336842251).

12463161881 is an equidigital number, since it uses as much as digits as its factorization.

12463161881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336842250.

The product of its digits is 55296, while the sum is 41.

The spelling of 12463161881 in words is "twelve billion, four hundred sixty-three million, one hundred sixty-one thousand, eight hundred eighty-one".