75481345828 has 24 divisors (see below), whose sum is σ = 158908097600. Its totient is φ = 30646561248.

The previous prime is 75481345781. The next prime is 75481345843. The reversal of 75481345828 is 82854318457.

It is a super-2 number, since 2×75481345828² (a number of 23 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 70940583 + ... + 70941646.

Almost surely, 2^75481345828 is an apocalyptic number.

It is an amenable number.

75481345828 is an abundant number, since it is smaller than the sum of its proper divisors (83426751772).

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

75481345828 is a wasteful number, since it uses less digits than its factorization.

75481345828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141882259 (or 141882257 counting only the distinct ones).

The product of its digits is 8601600, while the sum is 55.

The spelling of 75481345828 in words is "seventy-five billion, four hundred eighty-one million, three hundred forty-five thousand, eight hundred twenty-eight".