74843389512 has 96 divisors (see below), whose sum is σ = 204073604280. Its totient is φ = 24779381760.

The previous prime is 74843389493. The next prime is 74843389547. The reversal of 74843389512 is 21598334847.

It is a happy number.

74843389512 is a `hidden beast` number, since 7 + 4 + 8 + 43 + 3 + 89 + 512 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9171126756 + 65672262756 = 95766^2 + 256266^2 .

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 7057398 + ... + 7067994.

Almost surely, 2^74843389512 is an apocalyptic number.

74843389512 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

74843389512 is an abundant number, since it is smaller than the sum of its proper divisors (129230214768).

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

74843389512 is a wasteful number, since it uses less digits than its factorization.

74843389512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11263 (or 11256 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 74843389512 in words is "seventy-four billion, eight hundred forty-three million, three hundred eighty-nine thousand, five hundred twelve".