9442668426861 has 16 divisors (see below), whose sum is σ = 13655968115328. Its totient is φ = 5780303961600.

The previous prime is 9442668426857. The next prime is 9442668426901. The reversal of 9442668426861 is 1686248662449.

It is not a de Polignac number, because 9442668426861 - 2² = 9442668426857 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9442668426792 and 9442668426801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9442668426811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2257929145 + ... + 2257933326.

It is an arithmetic number, because the mean of its divisors is an integer number (853498007208).

Almost surely, 2^{9442668426861} is an apocalyptic number.

It is an amenable number.

9442668426861 is a deficient number, since it is larger than the sum of its proper divisors (4213299688467).

9442668426861 is a wasteful number, since it uses less digits than its factorization.

9442668426861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4515862532.

The product of its digits is 191102976, while the sum is 66.

The spelling of 9442668426861 in words is "nine trillion, four hundred forty-two billion, six hundred sixty-eight million, four hundred twenty-six thousand, eight hundred sixty-one".