486645979777 has 2 divisors, whose sum is σ = 486645979778. Its totient is φ = 486645979776.

The previous prime is 486645979709. The next prime is 486645979931. The reversal of 486645979777 is 777979546684.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 476650779201 + 9995200576 = 690399^2 + 99976^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-486645979777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 486645979697 and 486645979706.

It is not a weakly prime, because it can be changed into another prime (486645979177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243322989888 + 243322989889.

It is an arithmetic number, because the mean of its divisors is an integer number (243322989889).

Almost surely, 2^486645979777 is an apocalyptic number.

It is an amenable number.

486645979777 is a deficient number, since it is larger than the sum of its proper divisors (1).

486645979777 is an equidigital number, since it uses as much as digits as its factorization.

486645979777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4480842240, while the sum is 79.

The spelling of 486645979777 in words is "four hundred eighty-six billion, six hundred forty-five million, nine hundred seventy-nine thousand, seven hundred seventy-seven".