26181713 has 2 divisors, whose sum is σ = 26181714. Its totient is φ = 26181712.

The previous prime is 26181703. The next prime is 26181721. The reversal of 26181713 is 31718162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23892544 + 2289169 = 4888^2 + 1513^2 .

It is a cyclic number.

It is not a de Polignac number, because 26181713 - 2⁴ = 26181697 is a prime.

It is a super-2 number, since 2×26181713² = 1370964191228738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26181703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13090856 + 13090857.

It is an arithmetic number, because the mean of its divisors is an integer number (13090857).

Almost surely, 2^26181713 is an apocalyptic number.

It is an amenable number.

26181713 is a deficient number, since it is larger than the sum of its proper divisors (1).

26181713 is an equidigital number, since it uses as much as digits as its factorization.

26181713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 29.

The square root of 26181713 is about 5116.8069144731. The cubic root of 26181713 is about 296.9381642590.

Adding to 26181713 its reverse (31718162), we get a palindrome (57899875).

The spelling of 26181713 in words is "twenty-six million, one hundred eighty-one thousand, seven hundred thirteen".