74734545600 has 504 divisors, whose sum is σ = 312070619952. Its totient is φ = 16723353600.

The previous prime is 74734545581. The next prime is 74734545617. The reversal of 74734545600 is 654543747.

74734545600 is a `hidden beast` number, since 7 + 4 + 7 + 34 + 5 + 4 + 5 + 600 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2041054 + ... + 2077346.

It is an arithmetic number, because the mean of its divisors is an integer number (619187738).

Almost surely, 2^74734545600 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 74734545600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156035309976).

74734545600 is an abundant number, since it is smaller than the sum of its proper divisors (237336074352).

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

74734545600 is a wasteful number, since it uses less digits than its factorization.

74734545600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36345 (or 36327 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 45.

The spelling of 74734545600 in words is "seventy-four billion, seven hundred thirty-four million, five hundred forty-five thousand, six hundred".