75729730742 has 16 divisors (see below), whose sum is σ = 113723799552. Its totient is φ = 37821824040.

The previous prime is 75729730729. The next prime is 75729730849. The reversal of 75729730742 is 24703792757.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8536193 + ... + 8545059.

It is an arithmetic number, because the mean of its divisors is an integer number (7107737472).

Almost surely, 2^75729730742 is an apocalyptic number.

75729730742 is a deficient number, since it is larger than the sum of its proper divisors (37994068810).

75729730742 is a wasteful number, since it uses less digits than its factorization.

75729730742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13243.

The product of its (nonzero) digits is 5186160, while the sum is 53.

The spelling of 75729730742 in words is "seventy-five billion, seven hundred twenty-nine million, seven hundred thirty thousand, seven hundred forty-two".