868919919868 has 48 divisors (see below), whose sum is σ = 2041658002944. Its totient is φ = 312498671040.

The previous prime is 868919919817. The next prime is 868919919899.

868919919868 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×868919919868² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 868919919791 and 868919919800.

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, 108502480 + ... + 108510487.

It is an arithmetic number, because the mean of its divisors is an integer number (42534541728).

Almost surely, 2^868919919868 is an apocalyptic number.

It is an amenable number.

868919919868 is an abundant number, since it is smaller than the sum of its proper divisors (1172738083076).

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

868919919868 is a wasteful number, since it uses less digits than its factorization.

868919919868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217013002 (or 217013000 counting only the distinct ones).

The product of its digits is 967458816, while the sum is 82.

The spelling of 868919919868 in words is "eight hundred sixty-eight billion, nine hundred nineteen million, nine hundred nineteen thousand, eight hundred sixty-eight".