789856645113 has 16 divisors (see below), whose sum is σ = 1170485819200. Its totient is φ = 526423574880.

The previous prime is 789856645111. The next prime is 789856645129. The reversal of 789856645113 is 311546658987.

789856645113 is a `hidden beast` number, since 7 + 8 + 9 + 8 + 56 + 64 + 511 + 3 = 666.

It is not a de Polignac number, because 789856645113 - 2¹ = 789856645111 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (789856645111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3999628 + ... + 4192461.

It is an arithmetic number, because the mean of its divisors is an integer number (73155363700).

Almost surely, 2^789856645113 is an apocalyptic number.

It is an amenable number.

789856645113 is a deficient number, since it is larger than the sum of its proper divisors (380629174087).

789856645113 is a wasteful number, since it uses less digits than its factorization.

789856645113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8195669 (or 8195663 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 63.

The spelling of 789856645113 in words is "seven hundred eighty-nine billion, eight hundred fifty-six million, six hundred forty-five thousand, one hundred thirteen".