999999416386499 has 2 divisors, whose sum is σ = 999999416386500. Its totient is φ = 999999416386498.

The previous prime is 999999416386459. The next prime is 999999416386561. The reversal of 999999416386499 is 994683614999999.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999999416386499 is a prime.

It is not a weakly prime, because it can be changed into another prime (999999416386409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499999708193249 + 499999708193250.

It is an arithmetic number, because the mean of its divisors is an integer number (499999708193250).

Almost surely, 2^{999999416386499} is an apocalyptic number.

999999416386499 is a deficient number, since it is larger than the sum of its proper divisors (1).

999999416386499 is an equidigital number, since it uses as much as digits as its factorization.

999999416386499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 595077871104, while the sum is 104.

The spelling of 999999416386499 in words is "nine hundred ninety-nine trillion, nine hundred ninety-nine billion, four hundred sixteen million, three hundred eighty-six thousand, four hundred ninety-nine".