1123767678 has 16 divisors (see below), whose sum is σ = 2451856896. Its totient is φ = 340535640.

The previous prime is 1123767611. The next prime is 1123767679. The reversal of 1123767678 is 8767673211.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123767679) 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 in 7 ways as a sum of consecutive naturals, for example, 8513326 + ... + 8513457.

It is an arithmetic number, because the mean of its divisors is an integer number (153241056).

Almost surely, 2^1123767678 is an apocalyptic number.

1123767678 is an abundant number, since it is smaller than the sum of its proper divisors (1328089218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123767678 is a wasteful number, since it uses less digits than its factorization.

1123767678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17026799.

The product of its digits is 592704, while the sum is 48.

The square root of 1123767678 is about 33522.6442572778. The cubic root of 1123767678 is about 1039.6620197359.

The spelling of 1123767678 in words is "one billion, one hundred twenty-three million, seven hundred sixty-seven thousand, six hundred seventy-eight".