26078589813 has 16 divisors (see below), whose sum is σ = 36314565120. Its totient is φ = 16615475184.

The previous prime is 26078589773. The next prime is 26078589833. The reversal of 26078589813 is 31898587062.

It is a happy number.

It is not a de Polignac number, because 26078589813 - 2¹⁴ = 26078573429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26078589833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82243 + ... + 242736.

It is an arithmetic number, because the mean of its divisors is an integer number (2269660320).

Almost surely, 2^26078589813 is an apocalyptic number.

26078589813 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

26078589813 is a deficient number, since it is larger than the sum of its proper divisors (10235975307).

26078589813 is a wasteful number, since it uses less digits than its factorization.

26078589813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326168.

The product of its (nonzero) digits is 5806080, while the sum is 57.

The spelling of 26078589813 in words is "twenty-six billion, seventy-eight million, five hundred eighty-nine thousand, eight hundred thirteen".