74564340630 has 64 divisors (see below), whose sum is σ = 193042483200. Its totient is φ = 18323600256.

The previous prime is 74564340629. The next prime is 74564340637. The reversal of 74564340630 is 3604346547.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74564340637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74019 + ... + 393201.

It is an arithmetic number, because the mean of its divisors is an integer number (3016288800).

Almost surely, 2^74564340630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74564340630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96521241600).

74564340630 is an abundant number, since it is smaller than the sum of its proper divisors (118478142570).

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

74564340630 is a wasteful number, since it uses less digits than its factorization.

74564340630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319805.

The product of its (nonzero) digits is 725760, while the sum is 42.

The spelling of 74564340630 in words is "seventy-four billion, five hundred sixty-four million, three hundred forty thousand, six hundred thirty".