8731118880 has 144 divisors (see below), whose sum is σ = 32503633344. Its totient is φ = 2116631040.

The previous prime is 8731118861. The next prime is 8731118881. The reversal of 8731118880 is 888111378.

8731118880 is a `hidden beast` number, since 87 + 311 + 188 + 80 = 666.

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

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (8731118881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 259764 + ... + 291443.

It is an arithmetic number, because the mean of its divisors is an integer number (225719676).

Almost surely, 2^8731118880 is an apocalyptic number.

8731118880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8731118880 is an abundant number, since it is smaller than the sum of its proper divisors (23772514464).

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

8731118880 is a wasteful number, since it uses less digits than its factorization.

8731118880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551239 (or 551228 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 45.

The square root of 8731118880 is about 93440.4563345021. The cubic root of 8731118880 is about 2059.1594019052.

The spelling of 8731118880 in words is "eight billion, seven hundred thirty-one million, one hundred eighteen thousand, eight hundred eighty".