5475989664449 has 2 divisors, whose sum is σ = 5475989664450. Its totient is φ = 5475989664448.

The previous prime is 5475989664419. The next prime is 5475989664463. The reversal of 5475989664449 is 9444669895745.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5472123312049 + 3866352400 = 2339257^2 + 62180^2 .

It is a cyclic number.

It is not a de Polignac number, because 5475989664449 - 2⁸ = 5475989664193 is a prime.

It is a super-2 number, since 2×5475989664449² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5475989664419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2737994832224 + 2737994832225.

It is an arithmetic number, because the mean of its divisors is an integer number (2737994832225).

Almost surely, 2^{5475989664449} is an apocalyptic number.

It is an amenable number.

5475989664449 is a deficient number, since it is larger than the sum of its proper divisors (1).

5475989664449 is an equidigital number, since it uses as much as digits as its factorization.

5475989664449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9405849600, while the sum is 80.

The spelling of 5475989664449 in words is "five trillion, four hundred seventy-five billion, nine hundred eighty-nine million, six hundred sixty-four thousand, four hundred forty-nine".