26806357718 has 16 divisors (see below), whose sum is σ = 46014964224. Its totient is φ = 11473137000.

The previous prime is 26806357717. The next prime is 26806357729. The reversal of 26806357718 is 81775360862.

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 26806357718.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26806357717) 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, 1264280 + ... + 1285307.

It is an arithmetic number, because the mean of its divisors is an integer number (2875935264).

Almost surely, 2^26806357718 is an apocalyptic number.

26806357718 is a deficient number, since it is larger than the sum of its proper divisors (19208606506).

26806357718 is a wasteful number, since it uses less digits than its factorization.

26806357718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550347.

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 26806357718 in words is "twenty-six billion, eight hundred six million, three hundred fifty-seven thousand, seven hundred eighteen".