999999364667 has 2 divisors, whose sum is σ = 999999364668. Its totient is φ = 999999364666.

The previous prime is 999999364649. The next prime is 999999364691. The reversal of 999999364667 is 766463999999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999999364667 - 2²⁰ = 999998316091 is a prime.

It is not a weakly prime, because it can be changed into another prime (999999363667) 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, 499999682333 + 499999682334.

It is an arithmetic number, because the mean of its divisors is an integer number (499999682334).

Almost surely, 2^999999364667 is an apocalyptic number.

999999364667 is a deficient number, since it is larger than the sum of its proper divisors (1).

999999364667 is an equidigital number, since it uses as much as digits as its factorization.

999999364667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9642465504, while the sum is 86.

The spelling of 999999364667 in words is "nine hundred ninety-nine billion, nine hundred ninety-nine million, three hundred sixty-four thousand, six hundred sixty-seven".