75770081761 has 32 divisors (see below), whose sum is σ = 89414668800. Its totient is φ = 63441530880.

The previous prime is 75770081749. The next prime is 75770081767. The reversal of 75770081761 is 16718007757.

It is a cyclic number.

It is not a de Polignac number, because 75770081761 - 2²⁵ = 75736527329 is a prime.

It is a super-2 number, since 2×75770081761² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75770081767) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1646655 + ... + 1692043.

It is an arithmetic number, because the mean of its divisors is an integer number (2794208400).

Almost surely, 2^75770081761 is an apocalyptic number.

It is an amenable number.

75770081761 is a deficient number, since it is larger than the sum of its proper divisors (13644587039).

75770081761 is a wasteful number, since it uses less digits than its factorization.

75770081761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45609.

The product of its (nonzero) digits is 576240, while the sum is 49.

The spelling of 75770081761 in words is "seventy-five billion, seven hundred seventy million, eighty-one thousand, seven hundred sixty-one".