26771441905487 has 4 divisors (see below), whose sum is σ = 27635036805696. Its totient is φ = 25907847005280.

The previous prime is 26771441905451. The next prime is 26771441905493. The reversal of 26771441905487 is 78450914417762.

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 26771441905487 - 2¹⁰ = 26771441904463 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 (26771441905427) 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, 431797450058 + ... + 431797450119.

It is an arithmetic number, because the mean of its divisors is an integer number (6908759201424).

Almost surely, 2^{26771441905487} is an apocalyptic number.

26771441905487 is a deficient number, since it is larger than the sum of its proper divisors (863594900209).

26771441905487 is an equidigital number, since it uses as much as digits as its factorization.

26771441905487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863594900208.

The product of its (nonzero) digits is 94832640, while the sum is 65.

The spelling of 26771441905487 in words is "twenty-six trillion, seven hundred seventy-one billion, four hundred forty-one million, nine hundred five thousand, four hundred eighty-seven".