4668661626049 has 2 divisors, whose sum is σ = 4668661626050. Its totient is φ = 4668661626048.

The previous prime is 4668661625989. The next prime is 4668661626131. The reversal of 4668661626049 is 9406261668664.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2837984975424 + 1830676650625 = 1684632^2 + 1353025^2 .

It is a cyclic number.

It is not a de Polignac number, because 4668661626049 - 2²⁹ = 4668124755137 is a prime.

It is not a weakly prime, because it can be changed into another prime (4668661621049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2334330813024 + 2334330813025.

It is an arithmetic number, because the mean of its divisors is an integer number (2334330813025).

Almost surely, 2^{4668661626049} is an apocalyptic number.

It is an amenable number.

4668661626049 is a deficient number, since it is larger than the sum of its proper divisors (1).

4668661626049 is an equidigital number, since it uses as much as digits as its factorization.

4668661626049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107495424, while the sum is 64.

The spelling of 4668661626049 in words is "four trillion, six hundred sixty-eight billion, six hundred sixty-one million, six hundred twenty-six thousand, forty-nine".