10266684868409 has 4 divisors (see below), whose sum is σ = 10460395903716. Its totient is φ = 10072973833104.

The previous prime is 10266684868387. The next prime is 10266684868469. The reversal of 10266684868409 is 90486848666201.

10266684868409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5580239236009 + 4686445632400 = 2362253^2 + 2164820^2 .

It is a cyclic number.

It is not a de Polignac number, because 10266684868409 - 2¹⁶ = 10266684802873 is a prime.

It is a super-4 number, since 4×10266684868409⁴ (a number of 53 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10266684868469) 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, 96855517574 + ... + 96855517679.

It is an arithmetic number, because the mean of its divisors is an integer number (2615098975929).

Almost surely, 2^{10266684868409} is an apocalyptic number.

It is an amenable number.

10266684868409 is a deficient number, since it is larger than the sum of its proper divisors (193711035307).

10266684868409 is an equidigital number, since it uses as much as digits as its factorization.

10266684868409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193711035306.

The product of its (nonzero) digits is 191102976, while the sum is 68.

The spelling of 10266684868409 in words is "ten trillion, two hundred sixty-six billion, six hundred eighty-four million, eight hundred sixty-eight thousand, four hundred nine".