26434606040413 has 4 divisors (see below), whose sum is σ = 26505476298268. Its totient is φ = 26363735782560.

The previous prime is 26434606040369. The next prime is 26434606040467. The reversal of 26434606040413 is 31404060643462.

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 8514852392484 + 17919753647929 = 2918022^2 + 4233173^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26434606040413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26434606040413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26434606340413) 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, 35435128368 + ... + 35435129113.

It is an arithmetic number, because the mean of its divisors is an integer number (6626369074567).

Almost surely, 2^{26434606040413} is an apocalyptic number.

It is an amenable number.

26434606040413 is a deficient number, since it is larger than the sum of its proper divisors (70870257855).

26434606040413 is an equidigital number, since it uses as much as digits as its factorization.

26434606040413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70870257854.

The product of its (nonzero) digits is 995328, while the sum is 43.

Adding to 26434606040413 its reverse (31404060643462), we get a palindrome (57838666683875).

The spelling of 26434606040413 in words is "twenty-six trillion, four hundred thirty-four billion, six hundred six million, forty thousand, four hundred thirteen".