26423438856 has 32 divisors (see below), whose sum is σ = 68336481600. Its totient is φ = 8504095040.

The previous prime is 26423438843. The next prime is 26423438953. The reversal of 26423438856 is 65883432462.

It is a junction number, because it is equal to n+sod(n) for n = 26423438799 and 26423438808.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 18981660 + ... + 18983051.

It is an arithmetic number, because the mean of its divisors is an integer number (2135515050).

Almost surely, 2^26423438856 is an apocalyptic number.

It is an amenable number.

26423438856 is an abundant number, since it is smaller than the sum of its proper divisors (41913042744).

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

26423438856 is a wasteful number, since it uses less digits than its factorization.

26423438856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37964749 (or 37964745 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 51.

The spelling of 26423438856 in words is "twenty-six billion, four hundred twenty-three million, four hundred thirty-eight thousand, eight hundred fifty-six".