26805344934 has 16 divisors (see below), whose sum is σ = 55059627888. Its totient is φ = 8693625312.

The previous prime is 26805344933. The next prime is 26805344981. The reversal of 26805344934 is 43944350862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26805344933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60372177 + ... + 60372620.

It is an arithmetic number, because the mean of its divisors is an integer number (3441226743).

Almost surely, 2^26805344934 is an apocalyptic number.

26805344934 is an abundant number, since it is smaller than the sum of its proper divisors (28254282954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26805344934 is a wasteful number, since it uses less digits than its factorization.

26805344934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120744839.

The product of its (nonzero) digits is 2488320, while the sum is 48.

The spelling of 26805344934 in words is "twenty-six billion, eight hundred five million, three hundred forty-four thousand, nine hundred thirty-four".