8641800080 has 40 divisors (see below), whose sum is σ = 20109855744. Its totient is φ = 3453680000.

The previous prime is 8641800073. The next prime is 8641800107. The reversal of 8641800080 is 800081468.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 8641800080.

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, 45155 + ... + 139005.

Almost surely, 2^8641800080 is an apocalyptic number.

8641800080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8641800080 is an abundant number, since it is smaller than the sum of its proper divisors (11468055664).

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

8641800080 is a wasteful number, since it uses less digits than its factorization.

8641800080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95015 (or 95009 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 8641800080 is about 92961.2826933880. The cubic root of 8641800080 is about 2052.1136304454.

The spelling of 8641800080 in words is "eight billion, six hundred forty-one million, eight hundred thousand, eighty".