8564145594 has 16 divisors (see below), whose sum is σ = 17135525568. Its totient is φ = 2853509472.

The previous prime is 8564145593. The next prime is 8564145613. The reversal of 8564145594 is 4955414658.

It is a super-2 number, since 2×8564145594² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8564145593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285982 + ... + 314505.

It is an arithmetic number, because the mean of its divisors is an integer number (1070970348).

Almost surely, 2^8564145594 is an apocalyptic number.

8564145594 is an abundant number, since it is smaller than the sum of its proper divisors (8571379974).

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

8564145594 is a wasteful number, since it uses less digits than its factorization.

8564145594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602869.

The product of its digits is 3456000, while the sum is 51.

The square root of 8564145594 is about 92542.6690451491. The cubic root of 8564145594 is about 2045.9484201003.

The spelling of 8564145594 in words is "eight billion, five hundred sixty-four million, one hundred forty-five thousand, five hundred ninety-four".