75993508517 has 4 divisors (see below), whose sum is σ = 79993166880. Its totient is φ = 71993850156.

The previous prime is 75993508489. The next prime is 75993508529. The reversal of 75993508517 is 71580539957.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71580539957 = 1543 ⋅46390499.

It is a cyclic number.

It is not a de Polignac number, because 75993508517 - 2¹² = 75993504421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75993508537) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1999829153 + ... + 1999829190.

It is an arithmetic number, because the mean of its divisors is an integer number (19998291720).

Almost surely, 2^75993508517 is an apocalyptic number.

It is an amenable number.

75993508517 is a deficient number, since it is larger than the sum of its proper divisors (3999658363).

75993508517 is a wasteful number, since it uses less digits than its factorization.

75993508517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3999658362.

The product of its (nonzero) digits is 11907000, while the sum is 59.

The spelling of 75993508517 in words is "seventy-five billion, nine hundred ninety-three million, five hundred eight thousand, five hundred seventeen".