8643514576868 has 12 divisors (see below), whose sum is σ = 15140407020732. Its totient is φ = 4317683999520.

The previous prime is 8643514576859. The next prime is 8643514576883. The reversal of 8643514576868 is 8686754153468.

It can be written as a sum of positive squares in 2 ways, for example, as 5111903946304 + 3531610630564 = 2260952^2 + 1879258^2 .

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, 1018317455 + ... + 1018325942.

It is an arithmetic number, because the mean of its divisors is an integer number (1261700585061).

Almost surely, 2^{8643514576868} is an apocalyptic number.

It is an amenable number.

8643514576868 is a deficient number, since it is larger than the sum of its proper divisors (6496892443864).

8643514576868 is a wasteful number, since it uses less digits than its factorization.

8643514576868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036644462 (or 2036644460 counting only the distinct ones).

The product of its digits is 928972800, while the sum is 71.

The spelling of 8643514576868 in words is "eight trillion, six hundred forty-three billion, five hundred fourteen million, five hundred seventy-six thousand, eight hundred sixty-eight".