4779481956569 has 2 divisors, whose sum is σ = 4779481956570. Its totient is φ = 4779481956568.

The previous prime is 4779481956451. The next prime is 4779481956619. The reversal of 4779481956569 is 9656591849774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3063329556169 + 1716152400400 = 1750237^2 + 1310020^2 .

It is a cyclic number.

It is not a de Polignac number, because 4779481956569 - 2⁸ = 4779481956313 is a prime.

It is a super-2 number, since 2×4779481956569² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4779481956493 and 4779481956502.

It is not a weakly prime, because it can be changed into another prime (4779481956169) 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 as a sum of consecutive naturals, namely, 2389740978284 + 2389740978285.

It is an arithmetic number, because the mean of its divisors is an integer number (2389740978285).

Almost surely, 2^{4779481956569} is an apocalyptic number.

It is an amenable number.

4779481956569 is a deficient number, since it is larger than the sum of its proper divisors (1).

4779481956569 is an equidigital number, since it uses as much as digits as its factorization.

4779481956569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4115059200, while the sum is 80.

The spelling of 4779481956569 in words is "four trillion, seven hundred seventy-nine billion, four hundred eighty-one million, nine hundred fifty-six thousand, five hundred sixty-nine".