74729338512 has 40 divisors (see below), whose sum is σ = 193349249856. Its totient is φ = 24871268736.

The previous prime is 74729338511. The next prime is 74729338529. The reversal of 74729338512 is 21583392747.

It is not an unprimeable number, because it can be changed into a prime (74729338511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1172083 + ... + 1234194.

Almost surely, 2^74729338512 is an apocalyptic number.

It is an amenable number.

74729338512 is an abundant number, since it is smaller than the sum of its proper divisors (118619911344).

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

74729338512 is a wasteful number, since it uses less digits than its factorization.

74729338512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406935 (or 2406929 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 51.

The spelling of 74729338512 in words is "seventy-four billion, seven hundred twenty-nine million, three hundred thirty-eight thousand, five hundred twelve".