26340266539 has 8 divisors (see below), whose sum is σ = 26684095680. Its totient is φ = 25997501376.

The previous prime is 26340266509. The next prime is 26340266581. The reversal of 26340266539 is 93566204362.

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

It is a cyclic number.

It is not a de Polignac number, because 26340266539 - 2¹⁷ = 26340135467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26340266509) 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, 216099 + ... + 315244.

It is an arithmetic number, because the mean of its divisors is an integer number (3335511960).

Almost surely, 2^26340266539 is an apocalyptic number.

26340266539 is a deficient number, since it is larger than the sum of its proper divisors (343829141).

26340266539 is an equidigital number, since it uses as much as digits as its factorization.

26340266539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531989.

The product of its (nonzero) digits is 1399680, while the sum is 46.

The spelling of 26340266539 in words is "twenty-six billion, three hundred forty million, two hundred sixty-six thousand, five hundred thirty-nine".