994172000443 has 2 divisors, whose sum is σ = 994172000444. Its totient is φ = 994172000442.

The previous prime is 994172000429. The next prime is 994172000473. The reversal of 994172000443 is 344000271499.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-994172000443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 994172000443.

It is not a weakly prime, because it can be changed into another prime (994172000473) 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, 497086000221 + 497086000222.

It is an arithmetic number, because the mean of its divisors is an integer number (497086000222).

Almost surely, 2^994172000443 is an apocalyptic number.

994172000443 is a deficient number, since it is larger than the sum of its proper divisors (1).

994172000443 is an equidigital number, since it uses as much as digits as its factorization.

994172000443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 994172000443 in words is "nine hundred ninety-four billion, one hundred seventy-two million, four hundred forty-three", and thus it is an aban number.