8443525866 has 32 divisors (see below), whose sum is σ = 17073419328. Its totient is φ = 2783510400.

The previous prime is 8443525861. The next prime is 8443525939. The reversal of 8443525866 is 6685253448.

It is a super-2 number, since 2×8443525866² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8443525861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 566526 + ... + 581238.

It is an arithmetic number, because the mean of its divisors is an integer number (533544354).

Almost surely, 2^8443525866 is an apocalyptic number.

8443525866 is an abundant number, since it is smaller than the sum of its proper divisors (8629893462).

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

8443525866 is a wasteful number, since it uses less digits than its factorization.

8443525866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15766.

The product of its digits is 5529600, while the sum is 51.

The square root of 8443525866 is about 91888.6601600002. The cubic root of 8443525866 is about 2036.2977405797.

The spelling of 8443525866 in words is "eight billion, four hundred forty-three million, five hundred twenty-five thousand, eight hundred sixty-six".