26618113 has 4 divisors (see below), whose sum is σ = 26993088. Its totient is φ = 26243140.

The previous prime is 26618101. The next prime is 26618159. The reversal of 26618113 is 31181662.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31181662 = 2 ⋅15590831.

It is a cyclic number.

It is not a de Polignac number, because 26618113 - 2²¹ = 24520961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26618213) 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, 187381 + ... + 187522.

It is an arithmetic number, because the mean of its divisors is an integer number (6748272).

Almost surely, 2^26618113 is an apocalyptic number.

It is an amenable number.

26618113 is a deficient number, since it is larger than the sum of its proper divisors (374975).

26618113 is an equidigital number, since it uses as much as digits as its factorization.

26618113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374974.

The product of its digits is 1728, while the sum is 28.

The square root of 26618113 is about 5159.2744644960. The cubic root of 26618113 is about 298.5788824162.

Adding to 26618113 its reverse (31181662), we get a palindrome (57799775).

The spelling of 26618113 in words is "twenty-six million, six hundred eighteen thousand, one hundred thirteen".