74789568 has 196 divisors, whose sum is σ = 255412240. Its totient is φ = 21275136.

The previous prime is 74789563. The next prime is 74789569. The reversal of 74789568 is 86598747.

74789568 is a `hidden beast` number, since 7 + 4 + 78 + 9 + 568 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (74789563) 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 27 ways as a sum of consecutive naturals, for example, 326478 + ... + 326706.

Almost surely, 2^74789568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74789568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127706120).

74789568 is an abundant number, since it is smaller than the sum of its proper divisors (180622672).

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

74789568 is an equidigital number, since it uses as much as digits as its factorization.

74789568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 241 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 74789568 is about 8648.0962066804. The cubic root of 74789568 is about 421.3215515942.

It can be divided in two parts, 74789 and 568, that added together give a palindrome (75357).

The spelling of 74789568 in words is "seventy-four million, seven hundred eighty-nine thousand, five hundred sixty-eight".