26049520685887 has 4 divisors (see below), whose sum is σ = 26185905611136. Its totient is φ = 25913135760640.

The previous prime is 26049520685761. The next prime is 26049520685891. The reversal of 26049520685887 is 78858602594062.

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 26049520685887 - 2¹¹ = 26049520683839 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 (26049520685987) 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, 68192462338 + ... + 68192462719.

It is an arithmetic number, because the mean of its divisors is an integer number (6546476402784).

Almost surely, 2^{26049520685887} is an apocalyptic number.

26049520685887 is a deficient number, since it is larger than the sum of its proper divisors (136384925249).

26049520685887 is a wasteful number, since it uses less digits than its factorization.

26049520685887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136384925248.

The product of its (nonzero) digits is 464486400, while the sum is 70.

The spelling of 26049520685887 in words is "twenty-six trillion, forty-nine billion, five hundred twenty million, six hundred eighty-five thousand, eight hundred eighty-seven".