77575780804 has 6 divisors (see below), whose sum is σ = 135757616414. Its totient is φ = 38787890400.

The previous prime is 77575780747. The next prime is 77575780813. The reversal of 77575780804 is 40808757577.

It can be written as a sum of positive squares in only one way, i.e., 39461027904 + 38114752900 = 198648^2 + 195230^2 .

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 as a sum of consecutive naturals, namely, 9696972597 + ... + 9696972604.

Almost surely, 2^77575780804 is an apocalyptic number.

It is an amenable number.

77575780804 is a deficient number, since it is larger than the sum of its proper divisors (58181835610).

77575780804 is a wasteful number, since it uses less digits than its factorization.

77575780804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19393945205 (or 19393945203 counting only the distinct ones).

The product of its (nonzero) digits is 15366400, while the sum is 58.

The spelling of 77575780804 in words is "seventy-seven billion, five hundred seventy-five million, seven hundred eighty thousand, eight hundred four".