438454845163 has 2 divisors, whose sum is σ = 438454845164. Its totient is φ = 438454845162.

The previous prime is 438454845137. The next prime is 438454845209. The reversal of 438454845163 is 361548454834.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 438454845163 - 2¹³ = 438454836971 is a prime.

It is not a weakly prime, because it can be changed into another prime (438454845263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219227422581 + 219227422582.

It is an arithmetic number, because the mean of its divisors is an integer number (219227422582).

Almost surely, 2^438454845163 is an apocalyptic number.

438454845163 is a deficient number, since it is larger than the sum of its proper divisors (1).

438454845163 is an equidigital number, since it uses as much as digits as its factorization.

438454845163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22118400, while the sum is 55.

The spelling of 438454845163 in words is "four hundred thirty-eight billion, four hundred fifty-four million, eight hundred forty-five thousand, one hundred sixty-three".