84868804868 has 6 divisors (see below), whose sum is σ = 148520408526. Its totient is φ = 42434402432.

The previous prime is 84868804847. The next prime is 84868804883. The reversal of 84868804868 is 86840886848.

It can be written as a sum of positive squares in only one way, i.e., 71464259584 + 13404545284 = 267328^2 + 115778^2 .

It is a junction number, because it is equal to n+sod(n) for n = 84868804798 and 84868804807.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10608600605 + ... + 10608600612.

It is an arithmetic number, because the mean of its divisors is an integer number (24753401421).

Almost surely, 2^84868804868 is an apocalyptic number.

It is an amenable number.

84868804868 is a deficient number, since it is larger than the sum of its proper divisors (63651603658).

84868804868 is a wasteful number, since it uses less digits than its factorization.

84868804868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21217201221 (or 21217201219 counting only the distinct ones).

The product of its (nonzero) digits is 150994944, while the sum is 68.

The spelling of 84868804868 in words is "eighty-four billion, eight hundred sixty-eight million, eight hundred four thousand, eight hundred sixty-eight".