26356117668 has 24 divisors (see below), whose sum is σ = 61556826240. Its totient is φ = 8776912800.

The previous prime is 26356117661. The next prime is 26356117679. The reversal of 26356117668 is 86671165362.

It is a self number, because there is not a number n which added to its sum of digits gives 26356117668.

It is not an unprimeable number, because it can be changed into a prime (26356117661) 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, 1044483 + ... + 1069418.

It is an arithmetic number, because the mean of its divisors is an integer number (2564867760).

Almost surely, 2^26356117668 is an apocalyptic number.

It is an amenable number.

26356117668 is an abundant number, since it is smaller than the sum of its proper divisors (35200708572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26356117668 is a wasteful number, since it uses less digits than its factorization.

26356117668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114947 (or 2114945 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 51.

The spelling of 26356117668 in words is "twenty-six billion, three hundred fifty-six million, one hundred seventeen thousand, six hundred sixty-eight".