1678379211 has 10 divisors (see below), whose sum is σ = 2507208572. Its totient is φ = 1118919420.

The previous prime is 1678379203. The next prime is 1678379233. The reversal of 1678379211 is 1129738761.

1678379211 is a `hidden beast` number, since 1 + 67 + 8 + 379 + 211 = 666.

It is not a de Polignac number, because 1678379211 - 2³ = 1678379203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1678379251) 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 in 9 ways as a sum of consecutive naturals, for example, 10360285 + ... + 10360446.

Almost surely, 2^1678379211 is an apocalyptic number.

1678379211 is a deficient number, since it is larger than the sum of its proper divisors (828829361).

1678379211 is an equidigital number, since it uses as much as digits as its factorization.

1678379211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20720743 (or 20720734 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 1678379211 is about 40968.0266915555. The cubic root of 1678379211 is about 1188.4019721764.

The spelling of 1678379211 in words is "one billion, six hundred seventy-eight million, three hundred seventy-nine thousand, two hundred eleven".