26681788878 has 8 divisors (see below), whose sum is σ = 53363577768. Its totient is φ = 8893929624.

The previous prime is 26681788849. The next prime is 26681788879. The reversal of 26681788878 is 87888718662.

It is a sphenic number, since it is the product of 3 distinct primes.

26681788878 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26681788879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2223482401 + ... + 2223482412.

It is an arithmetic number, because the mean of its divisors is an integer number (6670447221).

Almost surely, 2^26681788878 is an apocalyptic number.

26681788878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

26681788878 is a wasteful number, since it uses less digits than its factorization.

26681788878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4446964818.

The product of its digits is 115605504, while the sum is 69.

The spelling of 26681788878 in words is "twenty-six billion, six hundred eighty-one million, seven hundred eighty-eight thousand, eight hundred seventy-eight".