1368863211 has 16 divisors (see below), whose sum is σ = 1877168384. Its totient is φ = 886637664.

The previous prime is 1368863207. The next prime is 1368863213. The reversal of 1368863211 is 1123688631.

It is not a de Polignac number, because 1368863211 - 2² = 1368863207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1368863211.

It is not an unprimeable number, because it can be changed into a prime (1368863213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72216 + ... + 89178.

It is an arithmetic number, because the mean of its divisors is an integer number (117323024).

Almost surely, 2^1368863211 is an apocalyptic number.

1368863211 is a deficient number, since it is larger than the sum of its proper divisors (508305173).

1368863211 is a wasteful number, since it uses less digits than its factorization.

1368863211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17730.

The product of its digits is 41472, while the sum is 39.

The square root of 1368863211 is about 36998.1514538227. The cubic root of 1368863211 is about 1110.3332632953. Note that the first 3 decimals are identical.

The spelling of 1368863211 in words is "one billion, three hundred sixty-eight million, eight hundred sixty-three thousand, two hundred eleven".