74384593988 has 12 divisors (see below), whose sum is σ = 130174973292. Its totient is φ = 37191744480.

The previous prime is 74384593979. The next prime is 74384594041. The reversal of 74384593988 is 88939548347.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16569353284 + 57815240704 = 128722^2 + 240448^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384506 + ... + 544622.

It is an arithmetic number, because the mean of its divisors is an integer number (10847914441).

Almost surely, 2^74384593988 is an apocalyptic number.

It is an amenable number.

74384593988 is a deficient number, since it is larger than the sum of its proper divisors (55790379304).

74384593988 is a wasteful number, since it uses less digits than its factorization.

74384593988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276262 (or 276260 counting only the distinct ones).

The product of its digits is 209018880, while the sum is 68.

It can be divided in two parts, 7438459 and 3988, that added together give a palindrome (7442447).

The spelling of 74384593988 in words is "seventy-four billion, three hundred eighty-four million, five hundred ninety-three thousand, nine hundred eighty-eight".