4668432620557 has 2 divisors, whose sum is σ = 4668432620558. Its totient is φ = 4668432620556.

The previous prime is 4668432620531. The next prime is 4668432620609. The reversal of 4668432620557 is 7550262348664.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2376179088196 + 2292253532361 = 1541486^2 + 1514019^2 .

It is a cyclic number.

It is not a de Polignac number, because 4668432620557 - 2¹⁹ = 4668432096269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4668432690557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2334216310278 + 2334216310279.

It is an arithmetic number, because the mean of its divisors is an integer number (2334216310279).

Almost surely, 2^{4668432620557} is an apocalyptic number.

It is an amenable number.

4668432620557 is a deficient number, since it is larger than the sum of its proper divisors (1).

4668432620557 is an equidigital number, since it uses as much as digits as its factorization.

4668432620557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58060800, while the sum is 58.

The spelling of 4668432620557 in words is "four trillion, six hundred sixty-eight billion, four hundred thirty-two million, six hundred twenty thousand, five hundred fifty-seven".