1368866985 has 16 divisors (see below), whose sum is σ = 2249382336. Its totient is φ = 710330688.

The previous prime is 1368866927. The next prime is 1368867037. The reversal of 1368866985 is 5896688631.

It is not a de Polignac number, because 1368866985 - 2⁶ = 1368866921 is a prime.

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, 1232659 + ... + 1233768.

It is an arithmetic number, because the mean of its divisors is an integer number (140586396).

Almost surely, 2^1368866985 is an apocalyptic number.

1368866985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1368866985 is a deficient number, since it is larger than the sum of its proper divisors (880515351).

1368866985 is a wasteful number, since it uses less digits than its factorization.

1368866985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466472.

The product of its digits is 14929920, while the sum is 60.

The square root of 1368866985 is about 36998.2024563356. The cubic root of 1368866985 is about 1110.3342837026.

The spelling of 1368866985 in words is "one billion, three hundred sixty-eight million, eight hundred sixty-six thousand, nine hundred eighty-five".