26413657247 has 4 divisors (see below), whose sum is σ = 26420383920. Its totient is φ = 26406930576.

The previous prime is 26413657241. The next prime is 26413657261. The reversal of 26413657247 is 74275631462.

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

It is a cyclic number.

It is not a de Polignac number, because 26413657247 - 2²² = 26409462943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26413657241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3357443 + ... + 3365300.

It is an arithmetic number, because the mean of its divisors is an integer number (6605095980).

Almost surely, 2^26413657247 is an apocalyptic number.

26413657247 is a deficient number, since it is larger than the sum of its proper divisors (6726673).

26413657247 is an equidigital number, since it uses as much as digits as its factorization.

26413657247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6726672.

The product of its digits is 1693440, while the sum is 47.

The spelling of 26413657247 in words is "twenty-six billion, four hundred thirteen million, six hundred fifty-seven thousand, two hundred forty-seven".