830779663999 has 2 divisors, whose sum is σ = 830779664000. Its totient is φ = 830779663998.

The previous prime is 830779663997. The next prime is 830779664003. The reversal of 830779663999 is 999366977038.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 830779663999 - 2¹ = 830779663997 is a prime.

It is a super-2 number, since 2×830779663999² (a number of 25 digits) contains 22 as substring.

Together with 830779663997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (830779663991) 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, 415389831999 + 415389832000.

It is an arithmetic number, because the mean of its divisors is an integer number (415389832000).

Almost surely, 2^830779663999 is an apocalyptic number.

830779663999 is a deficient number, since it is larger than the sum of its proper divisors (1).

830779663999 is an equidigital number, since it uses as much as digits as its factorization.

830779663999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 833299488, while the sum is 76.

The spelling of 830779663999 in words is "eight hundred thirty billion, seven hundred seventy-nine million, six hundred sixty-three thousand, nine hundred ninety-nine".