1679918473 has 2 divisors, whose sum is σ = 1679918474. Its totient is φ = 1679918472.

The previous prime is 1679918447. The next prime is 1679918479. The reversal of 1679918473 is 3748199761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1242774009 + 437144464 = 35253^2 + 20908^2 .

It is a cyclic number.

It is not a de Polignac number, because 1679918473 - 2⁵ = 1679918441 is a prime.

It is not a weakly prime, because it can be changed into another prime (1679918479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 839959236 + 839959237.

It is an arithmetic number, because the mean of its divisors is an integer number (839959237).

Almost surely, 2^1679918473 is an apocalyptic number.

It is an amenable number.

1679918473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1679918473 is an equidigital number, since it uses as much as digits as its factorization.

1679918473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 55.

The square root of 1679918473 is about 40986.8085242069. The cubic root of 1679918473 is about 1188.7651604747.

The spelling of 1679918473 in words is "one billion, six hundred seventy-nine million, nine hundred eighteen thousand, four hundred seventy-three".