75321757676065 has 4 divisors (see below), whose sum is σ = 90386109211284. Its totient is φ = 60257406140848.

The previous prime is 75321757676027. The next prime is 75321757676141. The reversal of 75321757676065 is 56067675712357.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29787657249249 + 45534100426816 = 5457807^2 + 6747896^2 .

It is a cyclic number.

It is not a de Polignac number, because 75321757676065 - 2⁷ = 75321757675937 is a prime.

It is a Duffinian number.

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 in 3 ways as a sum of consecutive naturals, for example, 7532175767602 + ... + 7532175767611.

It is an arithmetic number, because the mean of its divisors is an integer number (22596527302821).

Almost surely, 2^{75321757676065} is an apocalyptic number.

It is an amenable number.

75321757676065 is a deficient number, since it is larger than the sum of its proper divisors (15064351535219).

75321757676065 is a wasteful number, since it uses less digits than its factorization.

75321757676065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15064351535218.

The product of its (nonzero) digits is 388962000, while the sum is 67.

The spelling of 75321757676065 in words is "seventy-five trillion, three hundred twenty-one billion, seven hundred fifty-seven million, six hundred seventy-six thousand, sixty-five".