74749051328 has 56 divisors (see below), whose sum is σ = 169707177984. Its totient is φ = 31999968000.

The previous prime is 74749051303. The next prime is 74749051451. The reversal of 74749051328 is 82315094747.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316553 + ... + 499703.

Almost surely, 2^74749051328 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 74749051328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84853588992).

74749051328 is an abundant number, since it is smaller than the sum of its proper divisors (94958126656).

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

74749051328 is a wasteful number, since it uses less digits than its factorization.

74749051328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184081 (or 184071 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 74749051328 in words is "seventy-four billion, seven hundred forty-nine million, fifty-one thousand, three hundred twenty-eight".