74393653504 has 27 divisors (see below), whose sum is σ = 148505418327. Its totient is φ = 37194644736.

The previous prime is 74393653501. The next prime is 74393653541. The reversal of 74393653504 is 40535639347.

The square root of 74393653504 is 272752.

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

It is a super-2 number, since 2×74393653504² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74393653501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4355509 + ... + 4372555.

Almost surely, 2^74393653504 is an apocalyptic number.

74393653504 is the 272752-nd square number.

It is an amenable number.

74393653504 is a deficient number, since it is larger than the sum of its proper divisors (74111764823).

74393653504 is an frugal number, since it uses more digits than its factorization.

74393653504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34110 (or 17049 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 49.

Multiplying 74393653504 by its sum of digits (49), we get a square (3645289021696 = 1909264²).

The spelling of 74393653504 in words is "seventy-four billion, three hundred ninety-three million, six hundred fifty-three thousand, five hundred four".