999983967263 has 2 divisors, whose sum is σ = 999983967264. Its totient is φ = 999983967262.

The previous prime is 999983967221. The next prime is 999983967271. The reversal of 999983967263 is 362769389999.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999983967263 is a prime.

It is a super-2 number, since 2×999983967263² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999983960263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499991983631 + 499991983632.

It is an arithmetic number, because the mean of its divisors is an integer number (499991983632).

Almost surely, 2^999983967263 is an apocalyptic number.

999983967263 is a deficient number, since it is larger than the sum of its proper divisors (1).

999983967263 is an equidigital number, since it uses as much as digits as its factorization.

999983967263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2142770112, while the sum is 80.

The spelling of 999983967263 in words is "nine hundred ninety-nine billion, nine hundred eighty-three million, nine hundred sixty-seven thousand, two hundred sixty-three".