26644044646 has 8 divisors (see below), whose sum is σ = 39966759864. Its totient is φ = 13321791360.

The previous prime is 26644044601. The next prime is 26644044667. The reversal of 26644044646 is 64644044662.

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

It is a junction number, because it is equal to n+sod(n) for n = 26644044596 and 26644044605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163846 + ... + 283078.

It is an arithmetic number, because the mean of its divisors is an integer number (4995844983).

Almost surely, 2^26644044646 is an apocalyptic number.

26644044646 is a deficient number, since it is larger than the sum of its proper divisors (13322715218).

26644044646 is a wasteful number, since it uses less digits than its factorization.

26644044646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230966.

The product of its (nonzero) digits is 2654208, while the sum is 46.

The spelling of 26644044646 in words is "twenty-six billion, six hundred forty-four million, forty-four thousand, six hundred forty-six".