26411340385 has 4 divisors (see below), whose sum is σ = 31693608468. Its totient is φ = 21129072304.

The previous prime is 26411340367. The next prime is 26411340391. The reversal of 26411340385 is 58304311462.

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 20622108816 + 5789231569 = 143604^2 + 76087^2 .

It is a cyclic number.

It is not a de Polignac number, because 26411340385 - 2¹⁵ = 26411307617 is a prime.

It is a super-3 number, since 3×26411340385³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2641134034 + ... + 2641134043.

It is an arithmetic number, because the mean of its divisors is an integer number (7923402117).

Almost surely, 2^26411340385 is an apocalyptic number.

It is an amenable number.

26411340385 is a deficient number, since it is larger than the sum of its proper divisors (5282268083).

26411340385 is an equidigital number, since it uses as much as digits as its factorization.

26411340385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5282268082.

The product of its (nonzero) digits is 69120, while the sum is 37.

It can be divided in two parts, 26411 and 340385, that added together give a triangular number (366796 = T₈₅₆).

The spelling of 26411340385 in words is "twenty-six billion, four hundred eleven million, three hundred forty thousand, three hundred eighty-five".