8641966869434 has 4 divisors (see below), whose sum is σ = 12962950304154. Its totient is φ = 4320983434716.

The previous prime is 8641966869383. The next prime is 8641966869461. The reversal of 8641966869434 is 4349686691468.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4654568928025 + 3987397941409 = 2157445^2 + 1996847^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2160491717357 + ... + 2160491717360.

Almost surely, 2^{8641966869434} is an apocalyptic number.

8641966869434 is a deficient number, since it is larger than the sum of its proper divisors (4320983434720).

8641966869434 is a wasteful number, since it uses less digits than its factorization.

8641966869434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4320983434719.

The product of its digits is 1289945088, while the sum is 74.

The spelling of 8641966869434 in words is "eight trillion, six hundred forty-one billion, nine hundred sixty-six million, eight hundred sixty-nine thousand, four hundred thirty-four".