1994894520383 has 2 divisors, whose sum is σ = 1994894520384. Its totient is φ = 1994894520382.

The previous prime is 1994894520373. The next prime is 1994894520457. The reversal of 1994894520383 is 3830254984991.

It is a weak prime.

It is an emirp because it is prime and its reverse (3830254984991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1994894520383 - 2⁶ = 1994894520319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1994894520343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 997447260191 + 997447260192.

It is an arithmetic number, because the mean of its divisors is an integer number (997447260192).

Almost surely, 2^{1994894520383} is an apocalyptic number.

1994894520383 is a deficient number, since it is larger than the sum of its proper divisors (1).

1994894520383 is an equidigital number, since it uses as much as digits as its factorization.

1994894520383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67184640, while the sum is 65.

The spelling of 1994894520383 in words is "one trillion, nine hundred ninety-four billion, eight hundred ninety-four million, five hundred twenty thousand, three hundred eighty-three".