74539974912 has 288 divisors, whose sum is σ = 217882224000. Its totient is φ = 22485467136.

The previous prime is 74539974907. The next prime is 74539974923. The reversal of 74539974912 is 21947993547.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132397543 + ... + 132398105.

It is an arithmetic number, because the mean of its divisors is an integer number (756535500).

Almost surely, 2^74539974912 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 74539974912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108941112000).

74539974912 is an abundant number, since it is smaller than the sum of its proper divisors (143342249088).

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

74539974912 is a wasteful number, since it uses less digits than its factorization.

74539974912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833 (or 819 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 60.

The spelling of 74539974912 in words is "seventy-four billion, five hundred thirty-nine million, nine hundred seventy-four thousand, nine hundred twelve".