75770128 has 40 divisors (see below), whose sum is σ = 171689408. Its totient is φ = 31715712.

The previous prime is 75770111. The next prime is 75770129. The reversal of 75770128 is 82107757.

It is a super-2 number, since 2×75770128² = 11482224594272768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75770129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3051 + ... + 12682.

Almost surely, 2^75770128 is an apocalyptic number.

It is an amenable number.

75770128 is an abundant number, since it is smaller than the sum of its proper divisors (95919280).

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

75770128 is a wasteful number, since it uses less digits than its factorization.

75770128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15791 (or 15785 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 37.

The square root of 75770128 is about 8704.6038393485. The cubic root of 75770128 is about 423.1548669414.

The spelling of 75770128 in words is "seventy-five million, seven hundred seventy thousand, one hundred twenty-eight".