26621007117 has 4 divisors (see below), whose sum is σ = 35494676160. Its totient is φ = 17747338076.

The previous prime is 26621007097. The next prime is 26621007151. The reversal of 26621007117 is 71170012662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26621007117 - 2¹⁴ = 26620990733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26621007187) 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, 4436834517 + ... + 4436834522.

It is an arithmetic number, because the mean of its divisors is an integer number (8873669040).

Almost surely, 2^26621007117 is an apocalyptic number.

It is an amenable number.

26621007117 is a deficient number, since it is larger than the sum of its proper divisors (8873669043).

26621007117 is an equidigital number, since it uses as much as digits as its factorization.

26621007117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8873669042.

The product of its (nonzero) digits is 7056, while the sum is 33.

Adding to 26621007117 its reverse (71170012662), we get a palindrome (97791019779).

The spelling of 26621007117 in words is "twenty-six billion, six hundred twenty-one million, seven thousand, one hundred seventeen".