12234445667891 has 8 divisors (see below), whose sum is σ = 12577132471344. Its totient is φ = 11893867706880.

The previous prime is 12234445667879. The next prime is 12234445667897. The reversal of 12234445667891 is 19876654443221.

12234445667891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12234445667891 - 2²² = 12234441473587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12234445667897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527198846 + ... + 527222051.

It is an arithmetic number, because the mean of its divisors is an integer number (1572141558918).

Almost surely, 2^{12234445667891} is an apocalyptic number.

12234445667891 is a deficient number, since it is larger than the sum of its proper divisors (342686803453).

12234445667891 is a wasteful number, since it uses less digits than its factorization.

12234445667891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054421221.

The product of its digits is 69672960, while the sum is 62.

The spelling of 12234445667891 in words is "twelve trillion, two hundred thirty-four billion, four hundred forty-five million, six hundred sixty-seven thousand, eight hundred ninety-one".