8565194940 has 96 divisors (see below), whose sum is σ = 25607425536. Its totient is φ = 2133922560.

The previous prime is 8565194933. The next prime is 8565194971. The reversal of 8565194940 is 494915658.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12831 + ... + 131510.

It is an arithmetic number, because the mean of its divisors is an integer number (266744016).

Almost surely, 2^8565194940 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 8565194940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12803712768).

8565194940 is an abundant number, since it is smaller than the sum of its proper divisors (17042230596).

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

8565194940 is a wasteful number, since it uses less digits than its factorization.

8565194940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144419 (or 144417 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 51.

The square root of 8565194940 is about 92548.3383967535. The cubic root of 8565194940 is about 2046.0319785471.

The spelling of 8565194940 in words is "eight billion, five hundred sixty-five million, one hundred ninety-four thousand, nine hundred forty".