74459128384 has 63 divisors (see below), whose sum is σ = 154562488563. Its totient is φ = 35586874752.

The previous prime is 74459128351. The next prime is 74459128411. The reversal of 74459128384 is 48382195447.

The square root of 74459128384 is 272872.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

Its product of digits (7741440) is a multiple of the sum of its prime factors (3024).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 50207707 + ... + 50209189.

Almost surely, 2^74459128384 is an apocalyptic number.

74459128384 is the 272872-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74459128384

74459128384 is an abundant number, since it is smaller than the sum of its proper divisors (80103360179).

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

74459128384 is an frugal number, since it uses more digits than its factorization.

74459128384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024 (or 1508 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 55.

The spelling of 74459128384 in words is "seventy-four billion, four hundred fifty-nine million, one hundred twenty-eight thousand, three hundred eighty-four".