1368841863 has 4 divisors (see below), whose sum is σ = 1825122488. Its totient is φ = 912561240.

The previous prime is 1368841861. The next prime is 1368841879. The reversal of 1368841863 is 3681488631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3681488631 = 3 ⋅1227162877.

It is not a de Polignac number, because 1368841863 - 2¹ = 1368841861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368841861) 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 3 ways as a sum of consecutive naturals, for example, 228140308 + ... + 228140313.

It is an arithmetic number, because the mean of its divisors is an integer number (456280622).

Almost surely, 2^1368841863 is an apocalyptic number.

1368841863 is a deficient number, since it is larger than the sum of its proper divisors (456280625).

1368841863 is an equidigital number, since it uses as much as digits as its factorization.

1368841863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456280624.

The product of its digits is 663552, while the sum is 48.

The square root of 1368841863 is about 36997.8629517976. The cubic root of 1368841863 is about 1110.3274912266.

The spelling of 1368841863 in words is "one billion, three hundred sixty-eight million, eight hundred forty-one thousand, eight hundred sixty-three".