26423121655 has 16 divisors (see below), whose sum is σ = 36558114624. Its totient is φ = 17958366720.

The previous prime is 26423121631. The next prime is 26423121677. The reversal of 26423121655 is 55612132462.

It is a de Polignac number, because none of the positive numbers 2^k-26423121655 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3336516 + ... + 3344425.

It is an arithmetic number, because the mean of its divisors is an integer number (2284882164).

Almost surely, 2^26423121655 is an apocalyptic number.

26423121655 is a deficient number, since it is larger than the sum of its proper divisors (10134992969).

26423121655 is a wasteful number, since it uses less digits than its factorization.

26423121655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6681066.

The product of its digits is 86400, while the sum is 37.

The spelling of 26423121655 in words is "twenty-six billion, four hundred twenty-three million, one hundred twenty-one thousand, six hundred fifty-five".