26081663 has 6 divisors (see below), whose sum is σ = 26650656. Its totient is φ = 25524572.

The previous prime is 26081639. The next prime is 26081677. The reversal of 26081663 is 36618062.

It is not a de Polignac number, because 26081663 - 2¹² = 26077567 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 (26081603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3695 + ... + 8112.

It is an arithmetic number, because the mean of its divisors is an integer number (4441776).

Almost surely, 2^26081663 is an apocalyptic number.

26081663 is a deficient number, since it is larger than the sum of its proper divisors (568993).

26081663 is an equidigital number, since it uses as much as digits as its factorization.

26081663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11901 (or 11854 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 26081663 is about 5107.0209515920. The cubic root of 26081663 is about 296.5594446227.

The spelling of 26081663 in words is "twenty-six million, eighty-one thousand, six hundred sixty-three".