8731660788 has 48 divisors (see below), whose sum is σ = 22653319360. Its totient is φ = 2908537632.

The previous prime is 8731660783. The next prime is 8731660813. The reversal of 8731660788 is 8870661378.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8731660783) 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, 132906 + ... + 187422.

Almost surely, 2^8731660788 is an apocalyptic number.

It is an amenable number.

8731660788 is an abundant number, since it is smaller than the sum of its proper divisors (13921658572).

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

8731660788 is a wasteful number, since it uses less digits than its factorization.

8731660788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56013 (or 56005 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The square root of 8731660788 is about 93443.3560399026. The cubic root of 8731660788 is about 2059.2020024730.

It can be divided in two parts, 873 and 1660788, that added together give a palindrome (1661661).

The spelling of 8731660788 in words is "eight billion, seven hundred thirty-one million, six hundred sixty thousand, seven hundred eighty-eight".