4565474745649 has 2 divisors, whose sum is σ = 4565474745650. Its totient is φ = 4565474745648.

The previous prime is 4565474745607. The next prime is 4565474745679. The reversal of 4565474745649 is 9465474745654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4565303135649 + 171610000 = 2136657^2 + 13100^2 .

It is a cyclic number.

It is not a de Polignac number, because 4565474745649 - 2²⁵ = 4565441191217 is a prime.

It is not a weakly prime, because it can be changed into another prime (4565474745679) 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, 2282737372824 + 2282737372825.

It is an arithmetic number, because the mean of its divisors is an integer number (2282737372825).

Almost surely, 2^{4565474745649} is an apocalyptic number.

It is an amenable number.

4565474745649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4565474745649 is an equidigital number, since it uses as much as digits as its factorization.

4565474745649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128000, while the sum is 70.

The spelling of 4565474745649 in words is "four trillion, five hundred sixty-five billion, four hundred seventy-four million, seven hundred forty-five thousand, six hundred forty-nine".