26020107985 has 4 divisors (see below), whose sum is σ = 31224129588. Its totient is φ = 20816086384.

The previous prime is 26020107959. The next prime is 26020108001. The reversal of 26020107985 is 58970102062.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18877660816 + 7142447169 = 137396^2 + 84513^2 .

It is a cyclic number.

It is not a de Polignac number, because 26020107985 - 2³¹ = 23872624337 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2602010794 + ... + 2602010803.

It is an arithmetic number, because the mean of its divisors is an integer number (7806032397).

Almost surely, 2^26020107985 is an apocalyptic number.

It is an amenable number.

26020107985 is a deficient number, since it is larger than the sum of its proper divisors (5204021603).

26020107985 is an equidigital number, since it uses as much as digits as its factorization.

26020107985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5204021602.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 26020107985 in words is "twenty-six billion, twenty million, one hundred seven thousand, nine hundred eighty-five".