26178118363 has 4 divisors (see below), whose sum is σ = 26200474888. Its totient is φ = 26155761840.

The previous prime is 26178118349. The next prime is 26178118397. The reversal of 26178118363 is 36381187162.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26178118363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26178118303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11176506 + ... + 11178847.

It is an arithmetic number, because the mean of its divisors is an integer number (6550118722).

Almost surely, 2^26178118363 is an apocalyptic number.

26178118363 is a deficient number, since it is larger than the sum of its proper divisors (22356525).

26178118363 is a wasteful number, since it uses less digits than its factorization.

26178118363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22356524.

The product of its digits is 290304, while the sum is 46.

The spelling of 26178118363 in words is "twenty-six billion, one hundred seventy-eight million, one hundred eighteen thousand, three hundred sixty-three".