12493334881 has 4 divisors (see below), whose sum is σ = 12643857072. Its totient is φ = 12342812692.

The previous prime is 12493334869. The next prime is 12493334891. The reversal of 12493334881 is 18843339421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18843339421 = 23 ⋅819275627.

It is a cyclic number.

It is not a de Polignac number, because 12493334881 - 2⁷ = 12493334753 is a prime.

It is a super-2 number, since 2×12493334881² (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 (12493334801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75260971 + ... + 75261136.

It is an arithmetic number, because the mean of its divisors is an integer number (3160964268).

Almost surely, 2^12493334881 is an apocalyptic number.

It is an amenable number.

12493334881 is a deficient number, since it is larger than the sum of its proper divisors (150522191).

12493334881 is an equidigital number, since it uses as much as digits as its factorization.

12493334881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150522190.

The product of its digits is 497664, while the sum is 46.

The spelling of 12493334881 in words is "twelve billion, four hundred ninety-three million, three hundred thirty-four thousand, eight hundred eighty-one".