1678071601 has 2 divisors, whose sum is σ = 1678071602. Its totient is φ = 1678071600.

The previous prime is 1678071589. The next prime is 1678071613. The reversal of 1678071601 is 1061708761.

It is a balanced prime because it is at equal distance from previous prime (1678071589) and next prime (1678071613).

It can be written as a sum of positive squares in only one way, i.e., 1464210225 + 213861376 = 38265^2 + 14624^2 .

It is a cyclic number.

It is not a de Polignac number, because 1678071601 - 2¹⁷ = 1677940529 is a prime.

It is not a weakly prime, because it can be changed into another prime (1678071641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 839035800 + 839035801.

It is an arithmetic number, because the mean of its divisors is an integer number (839035801).

Almost surely, 2^1678071601 is an apocalyptic number.

It is an amenable number.

1678071601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1678071601 is an equidigital number, since it uses as much as digits as its factorization.

1678071601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 1678071601 is about 40964.2722503403. The cubic root of 1678071601 is about 1188.3293650914.

The spelling of 1678071601 in words is "one billion, six hundred seventy-eight million, seventy-one thousand, six hundred one".