1168378389 has 24 divisors (see below), whose sum is σ = 1705141152. Its totient is φ = 770883360.

The previous prime is 1168378369. The next prime is 1168378399. The reversal of 1168378389 is 9838738611.

1168378389 is a `hidden beast` number, since 116 + 83 + 78 + 389 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1168378389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1168378319) 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 23 ways as a sum of consecutive naturals, for example, 521179 + ... + 523415.

It is an arithmetic number, because the mean of its divisors is an integer number (71047548).

Almost surely, 2^1168378389 is an apocalyptic number.

It is an amenable number.

1168378389 is a deficient number, since it is larger than the sum of its proper divisors (536762763).

1168378389 is a wasteful number, since it uses less digits than its factorization.

1168378389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2817 (or 2814 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 1168378389 is about 34181.5504183178. The cubic root of 1168378389 is about 1053.2411982004.

The spelling of 1168378389 in words is "one billion, one hundred sixty-eight million, three hundred seventy-eight thousand, three hundred eighty-nine".