1916434679 has 2 divisors, whose sum is σ = 1916434680. Its totient is φ = 1916434678.

The previous prime is 1916434673. The next prime is 1916434691. The reversal of 1916434679 is 9764346191.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1916434679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1916434673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 958217339 + 958217340.

It is an arithmetic number, because the mean of its divisors is an integer number (958217340).

Almost surely, 2^1916434679 is an apocalyptic number.

1916434679 is a deficient number, since it is larger than the sum of its proper divisors (1).

1916434679 is an equidigital number, since it uses as much as digits as its factorization.

1916434679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 50.

The square root of 1916434679 is about 43777.1022225090. The cubic root of 1916434679 is about 1242.1232006027.

The spelling of 1916434679 in words is "one billion, nine hundred sixteen million, four hundred thirty-four thousand, six hundred seventy-nine".