494438400023 has 2 divisors, whose sum is σ = 494438400024. Its totient is φ = 494438400022.

The previous prime is 494438399999. The next prime is 494438400059. The reversal of 494438400023 is 320004834494.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 494438400023 - 2²⁸ = 494169964567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (494438420023) 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, 247219200011 + 247219200012.

It is an arithmetic number, because the mean of its divisors is an integer number (247219200012).

Almost surely, 2^494438400023 is an apocalyptic number.

494438400023 is a deficient number, since it is larger than the sum of its proper divisors (1).

494438400023 is an equidigital number, since it uses as much as digits as its factorization.

494438400023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 494438400023 in words is "four hundred ninety-four billion, four hundred thirty-eight million, four hundred thousand, twenty-three".