168959133779 has 2 divisors, whose sum is σ = 168959133780. Its totient is φ = 168959133778.

The previous prime is 168959133773. The next prime is 168959133781. The reversal of 168959133779 is 977331959861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168959133779 - 2¹² = 168959129683 is a prime.

Together with 168959133781, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (168959133773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84479566889 + 84479566890.

It is an arithmetic number, because the mean of its divisors is an integer number (84479566890).

Almost surely, 2^168959133779 is an apocalyptic number.

168959133779 is a deficient number, since it is larger than the sum of its proper divisors (1).

168959133779 is an equidigital number, since it uses as much as digits as its factorization.

168959133779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77157360, while the sum is 68.

The spelling of 168959133779 in words is "one hundred sixty-eight billion, nine hundred fifty-nine million, one hundred thirty-three thousand, seven hundred seventy-nine".