8685644334 has 16 divisors (see below), whose sum is σ = 17377234560. Its totient is φ = 2894223800.

The previous prime is 8685644327. The next prime is 8685644381. The reversal of 8685644334 is 4334465868.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228642 + ... + 263909.

It is an arithmetic number, because the mean of its divisors is an integer number (1086077160).

Almost surely, 2^8685644334 is an apocalyptic number.

8685644334 is an abundant number, since it is smaller than the sum of its proper divisors (8691590226).

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

8685644334 is a wasteful number, since it uses less digits than its factorization.

8685644334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495495.

The product of its digits is 6635520, while the sum is 51.

The square root of 8685644334 is about 93196.8043121651. The cubic root of 8685644334 is about 2055.5782503769.

The spelling of 8685644334 in words is "eight billion, six hundred eighty-five million, six hundred forty-four thousand, three hundred thirty-four".