26081287 has 12 divisors (see below), whose sum is σ = 27871200. Its totient is φ = 24393248.

The previous prime is 26081273. The next prime is 26081299. The reversal of 26081287 is 78218062.

It is not a de Polignac number, because 26081287 - 2²³ = 17692679 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 (26081227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24339 + ... + 25387.

It is an arithmetic number, because the mean of its divisors is an integer number (2322600).

Almost surely, 2^26081287 is an apocalyptic number.

26081287 is a deficient number, since it is larger than the sum of its proper divisors (1789913).

26081287 is a wasteful number, since it uses less digits than its factorization.

26081287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142 (or 1119 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 26081287 is about 5106.9841393919. The cubic root of 26081287 is about 296.5580195233.

The spelling of 26081287 in words is "twenty-six million, eighty-one thousand, two hundred eighty-seven".