499728967391 has 2 divisors, whose sum is σ = 499728967392. Its totient is φ = 499728967390.

The previous prime is 499728967369. The next prime is 499728967403. The reversal of 499728967391 is 193769827994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 499728967391 - 2²² = 499724773087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499728966391) 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, 249864483695 + 249864483696.

It is an arithmetic number, because the mean of its divisors is an integer number (249864483696).

Almost surely, 2^499728967391 is an apocalyptic number.

499728967391 is a deficient number, since it is larger than the sum of its proper divisors (1).

499728967391 is an equidigital number, since it uses as much as digits as its factorization.

499728967391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 370355328, while the sum is 74.

The spelling of 499728967391 in words is "four hundred ninety-nine billion, seven hundred twenty-eight million, nine hundred sixty-seven thousand, three hundred ninety-one".