868841505148868 has 12 divisors (see below), whose sum is σ = 1520535518196240. Its totient is φ = 434402785664232.

The previous prime is 868841505148849. The next prime is 868841505148871.

868841505148868 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×868841505148868² (a number of 31 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 868841505148792 and 868841505148801.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4491618746 + ... + 4491812177.

It is an arithmetic number, because the mean of its divisors is an integer number (126711293183020).

Almost surely, 2^{868841505148868} is an apocalyptic number.

It is an amenable number.

868841505148868 is a deficient number, since it is larger than the sum of its proper divisors (651694013047372).

868841505148868 is a wasteful number, since it uses less digits than its factorization.

868841505148868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8983455106 (or 8983455104 counting only the distinct ones).

The product of its (nonzero) digits is 3774873600, while the sum is 80.

The spelling of 868841505148868 in words is "eight hundred sixty-eight trillion, eight hundred forty-one billion, five hundred five million, one hundred forty-eight thousand, eight hundred sixty-eight".