1368699918 has 32 divisors (see below), whose sum is σ = 2772631680. Its totient is φ = 450398880.

The previous prime is 1368699889. The next prime is 1368699923. The reversal of 1368699918 is 8199968631.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 146421 + ... + 155487.

It is an arithmetic number, because the mean of its divisors is an integer number (86644740).

Almost surely, 2^1368699918 is an apocalyptic number.

1368699918 is an abundant number, since it is smaller than the sum of its proper divisors (1403931762).

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

1368699918 is a wasteful number, since it uses less digits than its factorization.

1368699918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9392.

The product of its digits is 5038848, while the sum is 60.

The square root of 1368699918 is about 36995.9446155927. The cubic root of 1368699918 is about 1110.2891106344.

The spelling of 1368699918 in words is "one billion, three hundred sixty-eight million, six hundred ninety-nine thousand, nine hundred eighteen".