26918505863117 has 8 divisors (see below), whose sum is σ = 29374874373792. Its totient is φ = 24463675954800.

The previous prime is 26918505863113. The next prime is 26918505863189. The reversal of 26918505863117 is 71136850581962.

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 26918505863117 - 2² = 26918505863113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26918505863117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26918505863113) 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, 384614003 + ... + 384683984.

It is an arithmetic number, because the mean of its divisors is an integer number (3671859296724).

Almost surely, 2^{26918505863117} is an apocalyptic number.

It is an amenable number.

26918505863117 is a deficient number, since it is larger than the sum of its proper divisors (2456368510675).

26918505863117 is a wasteful number, since it uses less digits than its factorization.

26918505863117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769301179.

The product of its (nonzero) digits is 21772800, while the sum is 62.

The spelling of 26918505863117 in words is "twenty-six trillion, nine hundred eighteen billion, five hundred five million, eight hundred sixty-three thousand, one hundred seventeen".