8685811296 has 144 divisors (see below), whose sum is σ = 25781988960. Its totient is φ = 2771159040.

The previous prime is 8685811271. The next prime is 8685811313. The reversal of 8685811296 is 6921185868.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 618885 + ... + 632763.

It is an arithmetic number, because the mean of its divisors is an integer number (179041590).

Almost surely, 2^8685811296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8685811296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12890994480).

8685811296 is an abundant number, since it is smaller than the sum of its proper divisors (17096177664).

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

8685811296 is a wasteful number, since it uses less digits than its factorization.

8685811296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13989 (or 13978 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 54.

The square root of 8685811296 is about 93197.7000574585. The cubic root of 8685811296 is about 2055.5914215839.

The spelling of 8685811296 in words is "eight billion, six hundred eighty-five million, eight hundred eleven thousand, two hundred ninety-six".