74545746624 has 168 divisors, whose sum is σ = 220783660032. Its totient is φ = 24023139840.

The previous prime is 74545746619. The next prime is 74545746643. The reversal of 74545746624 is 42664754547.

74545746624 is a `hidden beast` number, since 7 + 4 + 5 + 4 + 5 + 7 + 4 + 6 + 624 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30764677 + ... + 30767099.

Almost surely, 2^74545746624 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 74545746624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110391830016).

74545746624 is an abundant number, since it is smaller than the sum of its proper divisors (146237913408).

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

74545746624 is a wasteful number, since it uses less digits than its factorization.

74545746624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4195 (or 4182 counting only the distinct ones).

The product of its digits is 22579200, while the sum is 54.

The spelling of 74545746624 in words is "seventy-four billion, five hundred forty-five million, seven hundred forty-six thousand, six hundred twenty-four".