75611327109 has 4 divisors (see below), whose sum is σ = 100815102816. Its totient is φ = 50407551404.

The previous prime is 75611327087. The next prime is 75611327111. The reversal of 75611327109 is 90172311657.

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.

It is a cyclic number.

It is not a de Polignac number, because 75611327109 - 2¹¹ = 75611325061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75611327149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12601887849 + ... + 12601887854.

It is an arithmetic number, because the mean of its divisors is an integer number (25203775704).

Almost surely, 2^75611327109 is an apocalyptic number.

It is an amenable number.

75611327109 is a deficient number, since it is larger than the sum of its proper divisors (25203775707).

75611327109 is a wasteful number, since it uses less digits than its factorization.

75611327109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25203775706.

The product of its (nonzero) digits is 79380, while the sum is 42.

The spelling of 75611327109 in words is "seventy-five billion, six hundred eleven million, three hundred twenty-seven thousand, one hundred nine".