26113809 has 16 divisors (see below), whose sum is σ = 38246400. Its totient is φ = 15775056.

The previous prime is 26113807. The next prime is 26113817. The reversal of 26113809 is 90831162.

It is not a de Polignac number, because 26113809 - 2¹ = 26113807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26113807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8649 + ... + 11270.

It is an arithmetic number, because the mean of its divisors is an integer number (2390400).

Almost surely, 2^26113809 is an apocalyptic number.

It is an amenable number.

26113809 is a deficient number, since it is larger than the sum of its proper divisors (12132591).

26113809 is a wasteful number, since it uses less digits than its factorization.

26113809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19964.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 26113809 is about 5110.1672183990. The cubic root of 26113809 is about 296.6812324344.

The spelling of 26113809 in words is "twenty-six million, one hundred thirteen thousand, eight hundred nine".