26934442610861 has 8 divisors (see below), whose sum is σ = 26967828727224. Its totient is φ = 26901062876160.

The previous prime is 26934442610641. The next prime is 26934442610869. The reversal of 26934442610861 is 16801624443962.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2272839668836 + 24661602942025 = 1507594^2 + 4966045^2 .

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 26934442610861 - 2³⁸ = 26659564703917 is a prime.

It is a super-2 number, since 2×26934442610861² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26934442610797 and 26934442610806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26934442610869) 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 7 ways as a sum of consecutive naturals, for example, 6878885 + ... + 10059221.

It is an arithmetic number, because the mean of its divisors is an integer number (3370978590903).

Almost surely, 2^{26934442610861} is an apocalyptic number.

It is an amenable number.

26934442610861 is a deficient number, since it is larger than the sum of its proper divisors (33386116363).

26934442610861 is an equidigital number, since it uses as much as digits as its factorization.

26934442610861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3190831.

The product of its (nonzero) digits is 11943936, while the sum is 56.

The spelling of 26934442610861 in words is "twenty-six trillion, nine hundred thirty-four billion, four hundred forty-two million, six hundred ten thousand, eight hundred sixty-one".