75568006138 has 4 divisors (see below), whose sum is σ = 113352009210. Its totient is φ = 37784003068.

The previous prime is 75568006103. The next prime is 75568006183. The reversal of 75568006138 is 83160086557.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83160086557 = 10663 ⋅7798939.

It can be written as a sum of positive squares in only one way, i.e., 67957711969 + 7610294169 = 260687^2 + 87237^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 75568006091 and 75568006100.

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 as a sum of consecutive naturals, namely, 18892001533 + ... + 18892001536.

Almost surely, 2^75568006138 is an apocalyptic number.

75568006138 is a deficient number, since it is larger than the sum of its proper divisors (37784003072).

75568006138 is a wasteful number, since it uses less digits than its factorization.

75568006138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37784003071.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 75568006138 in words is "seventy-five billion, five hundred sixty-eight million, six thousand, one hundred thirty-eight".