75545374812 has 12 divisors (see below), whose sum is σ = 176272541256. Its totient is φ = 25181791600.

The previous prime is 75545374789. The next prime is 75545374871. The reversal of 75545374812 is 21847354557.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3147723939 + ... + 3147723962.

It is an arithmetic number, because the mean of its divisors is an integer number (14689378438).

Almost surely, 2^75545374812 is an apocalyptic number.

It is an amenable number.

75545374812 is an abundant number, since it is smaller than the sum of its proper divisors (100727166444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75545374812 is a wasteful number, since it uses less digits than its factorization.

75545374812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6295447908 (or 6295447906 counting only the distinct ones).

The product of its digits is 4704000, while the sum is 51.

The spelling of 75545374812 in words is "seventy-five billion, five hundred forty-five million, three hundred seventy-four thousand, eight hundred twelve".