856523423105 has 8 divisors (see below), whose sum is σ = 1174660694592. Its totient is φ = 587330347248.

The previous prime is 856523423089. The next prime is 856523423131. The reversal of 856523423105 is 501324325658.

856523423105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 856523423105 - 2⁴ = 856523423089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12236048867 + ... + 12236048936.

It is an arithmetic number, because the mean of its divisors is an integer number (146832586824).

Almost surely, 2^856523423105 is an apocalyptic number.

It is an amenable number.

856523423105 is a deficient number, since it is larger than the sum of its proper divisors (318137271487).

856523423105 is a wasteful number, since it uses less digits than its factorization.

856523423105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24472097815.

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 856523423105 in words is "eight hundred fifty-six billion, five hundred twenty-three million, four hundred twenty-three thousand, one hundred five".