75068665738 has 16 divisors (see below), whose sum is σ = 125453245824. Its totient is φ = 33396117760.

The previous prime is 75068665717. The next prime is 75068665741. The reversal of 75068665738 is 83756686057.

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, 36299095 + ... + 36301162.

It is an arithmetic number, because the mean of its divisors is an integer number (7840827864).

Almost surely, 2^75068665738 is an apocalyptic number.

75068665738 is a deficient number, since it is larger than the sum of its proper divisors (50384580086).

75068665738 is a wasteful number, since it uses less digits than its factorization.

75068665738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72600317.

The product of its (nonzero) digits is 50803200, while the sum is 61.

The spelling of 75068665738 in words is "seventy-five billion, sixty-eight million, six hundred sixty-five thousand, seven hundred thirty-eight".