4771816826449 has 4 divisors (see below), whose sum is σ = 4771829307060. Its totient is φ = 4771804345840.

The previous prime is 4771816826443. The next prime is 4771816826471. The reversal of 4771816826449 is 9446286181774.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3185368257600 + 1586448568849 = 1784760^2 + 1259543^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4771816826449 is a prime.

It is a super-3 number, since 3×4771816826449³ (a number of 39 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4771816826443) 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 3 ways as a sum of consecutive naturals, for example, 5648062 + ... + 6437719.

It is an arithmetic number, because the mean of its divisors is an integer number (1192957326765).

Almost surely, 2^{4771816826449} is an apocalyptic number.

It is an amenable number.

4771816826449 is a deficient number, since it is larger than the sum of its proper divisors (12480611).

4771816826449 is a wasteful number, since it uses less digits than its factorization.

4771816826449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12480610.

The product of its digits is 130056192, while the sum is 67.

The spelling of 4771816826449 in words is "four trillion, seven hundred seventy-one billion, eight hundred sixteen million, eight hundred twenty-six thousand, four hundred forty-nine".