75645068770 has 8 divisors (see below), whose sum is σ = 136161123804. Its totient is φ = 30258027504.

The previous prime is 75645068767. The next prime is 75645068791. The reversal of 75645068770 is 7786054657.

It can be written as a sum of positive squares in 2 ways, for example, as 74330933769 + 1314135001 = 272637^2 + 36251^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 3782253429 + ... + 3782253448.

Almost surely, 2^75645068770 is an apocalyptic number.

75645068770 is a deficient number, since it is larger than the sum of its proper divisors (60516055034).

75645068770 is a wasteful number, since it uses less digits than its factorization.

75645068770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7564506884.

The product of its (nonzero) digits is 9878400, while the sum is 55.

The spelling of 75645068770 in words is "seventy-five billion, six hundred forty-five million, sixty-eight thousand, seven hundred seventy".