499938009943 has 2 divisors, whose sum is σ = 499938009944. Its totient is φ = 499938009942.

The previous prime is 499938009937. The next prime is 499938010049. The reversal of 499938009943 is 349900839994.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499938009943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499938006943) 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, 249969004971 + 249969004972.

It is an arithmetic number, because the mean of its divisors is an integer number (249969004972).

Almost surely, 2^499938009943 is an apocalyptic number.

499938009943 is a deficient number, since it is larger than the sum of its proper divisors (1).

499938009943 is an equidigital number, since it uses as much as digits as its factorization.

499938009943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68024448, while the sum is 67.

The spelling of 499938009943 in words is "four hundred ninety-nine billion, nine hundred thirty-eight million, nine thousand, nine hundred forty-three".