26684343818 has 16 divisors (see below), whose sum is σ = 43677797184. Its totient is φ = 12125772960.

The previous prime is 26684343817. The next prime is 26684343827. The reversal of 26684343818 is 81834348662.

It is a happy number.

26684343818 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 26684343818.

It is not an unprimeable number, because it can be changed into a prime (26684343817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94355 + ... + 249542.

It is an arithmetic number, because the mean of its divisors is an integer number (2729862324).

Almost surely, 2^26684343818 is an apocalyptic number.

26684343818 is a deficient number, since it is larger than the sum of its proper divisors (16993453366).

26684343818 is a wasteful number, since it uses less digits than its factorization.

26684343818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347437.

The product of its digits is 5308416, while the sum is 53.

The spelling of 26684343818 in words is "twenty-six billion, six hundred eighty-four million, three hundred forty-three thousand, eight hundred eighteen".