12448874420881 has 4 divisors (see below), whose sum is σ = 12448881479664. Its totient is φ = 12448867362100.

The previous prime is 12448874420833. The next prime is 12448874420923. The reversal of 12448874420881 is 18802447884421.

It is a happy number.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12448874420881 - 2¹¹ = 12448874418833 is a prime.

It is a super-2 number, since 2×12448874420881² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12448874420831) 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, 1632846 + ... + 5250136.

It is an arithmetic number, because the mean of its divisors is an integer number (3112220369916).

Almost surely, 2^{12448874420881} is an apocalyptic number.

It is an amenable number.

12448874420881 is a deficient number, since it is larger than the sum of its proper divisors (7058783).

12448874420881 is an equidigital number, since it uses as much as digits as its factorization.

12448874420881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7058782.

The product of its (nonzero) digits is 29360128, while the sum is 61.

The spelling of 12448874420881 in words is "twelve trillion, four hundred forty-eight billion, eight hundred seventy-four million, four hundred twenty thousand, eight hundred eighty-one".