26105863 has 8 divisors (see below), whose sum is σ = 31590432. Its totient is φ = 21060096.

The previous prime is 26105819. The next prime is 26105879. The reversal of 26105863 is 36850162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26105863 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 (26105063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109570 + ... + 109807.

It is an arithmetic number, because the mean of its divisors is an integer number (3948804).

Almost surely, 2^26105863 is an apocalyptic number.

26105863 is a deficient number, since it is larger than the sum of its proper divisors (5484569).

26105863 is a wasteful number, since it uses less digits than its factorization.

26105863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219401.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 26105863 is about 5109.3896895813. The cubic root of 26105863 is about 296.6511376517.

It can be divided in two parts, 261058 and 63, that added together give a square (261121 = 511²).

The spelling of 26105863 in words is "twenty-six million, one hundred five thousand, eight hundred sixty-three".