74604943728 has 300 divisors, whose sum is σ = 259291445952. Its totient is φ = 20627550720.

The previous prime is 74604943711. The next prime is 74604943729. The reversal of 74604943728 is 82734940647.

74604943728 is a `hidden beast` number, since 7 + 4 + 604 + 9 + 4 + 3 + 7 + 28 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74604943729) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1949676 + ... + 1987572.

Almost surely, 2^74604943728 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 74604943728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129645722976).

74604943728 is an abundant number, since it is smaller than the sum of its proper divisors (184686502224).

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

74604943728 is a wasteful number, since it uses less digits than its factorization.

74604943728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37962 (or 37940 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 54.

The spelling of 74604943728 in words is "seventy-four billion, six hundred four million, nine hundred forty-three thousand, seven hundred twenty-eight".