75481855968 has 24 divisors (see below), whose sum is σ = 198139872168. Its totient is φ = 25160618624.

The previous prime is 75481855931. The next prime is 75481855987. The reversal of 75481855968 is 86955818457.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 75481855899 and 75481855908.

It is a congruent 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, 393134571 + ... + 393134762.

It is an arithmetic number, because the mean of its divisors is an integer number (8255828007).

Almost surely, 2^75481855968 is an apocalyptic number.

It is an amenable number.

75481855968 is an abundant number, since it is smaller than the sum of its proper divisors (122658016200).

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

75481855968 is a wasteful number, since it uses less digits than its factorization.

75481855968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786269346 (or 786269338 counting only the distinct ones).

The product of its digits is 96768000, while the sum is 66.

The spelling of 75481855968 in words is "seventy-five billion, four hundred eighty-one million, eight hundred fifty-five thousand, nine hundred sixty-eight".