8774729988 has 48 divisors (see below), whose sum is σ = 20710329024. Its totient is φ = 2891381760.

The previous prime is 8774729987. The next prime is 8774730007. The reversal of 8774729988 is 8899274778.

It is not an unprimeable number, because it can be changed into a prime (8774729981) 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, 385131 + ... + 407277.

It is an arithmetic number, because the mean of its divisors is an integer number (431465188).

Almost surely, 2^8774729988 is an apocalyptic number.

It is an amenable number.

8774729988 is an abundant number, since it is smaller than the sum of its proper divisors (11935599036).

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

8774729988 is a wasteful number, since it uses less digits than its factorization.

8774729988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22532 (or 22530 counting only the distinct ones).

The product of its digits is 113799168, while the sum is 69.

The square root of 8774729988 is about 93673.5287474535. The cubic root of 8774729988 is about 2062.5821445483.

The spelling of 8774729988 in words is "eight billion, seven hundred seventy-four million, seven hundred twenty-nine thousand, nine hundred eighty-eight".