26318258813 has 16 divisors (see below), whose sum is σ = 33431481216. Its totient is φ = 20120792640.

The previous prime is 26318258779. The next prime is 26318258819. The reversal of 26318258813 is 31885281362.

It is a cyclic number.

It is not a de Polignac number, because 26318258813 - 2²⁰ = 26317210237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26318258819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3220406 + ... + 3228567.

It is an arithmetic number, because the mean of its divisors is an integer number (2089467576).

Almost surely, 2^26318258813 is an apocalyptic number.

It is an amenable number.

26318258813 is a deficient number, since it is larger than the sum of its proper divisors (7113222403).

26318258813 is a wasteful number, since it uses less digits than its factorization.

26318258813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6449044.

The product of its digits is 552960, while the sum is 47.

The spelling of 26318258813 in words is "twenty-six billion, three hundred eighteen million, two hundred fifty-eight thousand, eight hundred thirteen".