26380685087 has 4 divisors (see below), whose sum is σ = 26393364096. Its totient is φ = 26368006080.

The previous prime is 26380685083. The next prime is 26380685099. The reversal of 26380685087 is 78058608362.

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

It is a cyclic number.

It is not a de Polignac number, because 26380685087 - 2² = 26380685083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26380685083) 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, 6336383 + ... + 6340544.

It is an arithmetic number, because the mean of its divisors is an integer number (6598341024).

Almost surely, 2^26380685087 is an apocalyptic number.

26380685087 is a deficient number, since it is larger than the sum of its proper divisors (12679009).

26380685087 is a wasteful number, since it uses less digits than its factorization.

26380685087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12679008.

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 26380685087 in words is "twenty-six billion, three hundred eighty million, six hundred eighty-five thousand, eighty-seven".