74347132512 has 96 divisors (see below), whose sum is σ = 206738632800. Its totient is φ = 23313604608.

The previous prime is 74347132441. The next prime is 74347132537. The reversal of 74347132512 is 21523174347.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×74347132512³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3889314 + ... + 3908382.

It is an arithmetic number, because the mean of its divisors is an integer number (2153527425).

Almost surely, 2^74347132512 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 74347132512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103369316400).

74347132512 is an abundant number, since it is smaller than the sum of its proper divisors (132391500288).

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

74347132512 is a wasteful number, since it uses less digits than its factorization.

74347132512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21488 (or 21480 counting only the distinct ones).

The product of its digits is 141120, while the sum is 39.

The spelling of 74347132512 in words is "seventy-four billion, three hundred forty-seven million, one hundred thirty-two thousand, five hundred twelve".