75729446140 has 24 divisors (see below), whose sum is σ = 159268168080. Its totient is φ = 30246763008.

The previous prime is 75729446041. The next prime is 75729446201. The reversal of 75729446140 is 4164492757.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2799670 + ... + 2826589.

It is an arithmetic number, because the mean of its divisors is an integer number (6636173670).

Almost surely, 2^75729446140 is an apocalyptic number.

It is an amenable number.

75729446140 is an abundant number, since it is smaller than the sum of its proper divisors (83538721940).

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

75729446140 is a wasteful number, since it uses less digits than its factorization.

75729446140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5626941 (or 5626939 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 75729446140 in words is "seventy-five billion, seven hundred twenty-nine million, four hundred forty-six thousand, one hundred forty".