1368736843 has 4 divisors (see below), whose sum is σ = 1376933040. Its totient is φ = 1360540648.

The previous prime is 1368736841. The next prime is 1368736847. The reversal of 1368736843 is 3486378631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3486378631 = 991 ⋅3518041.

It is a cyclic number.

It is not a de Polignac number, because 1368736843 - 2¹ = 1368736841 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1368736841) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4097848 + ... + 4098181.

It is an arithmetic number, because the mean of its divisors is an integer number (344233260).

Almost surely, 2^1368736843 is an apocalyptic number.

1368736843 is a deficient number, since it is larger than the sum of its proper divisors (8196197).

1368736843 is an equidigital number, since it uses as much as digits as its factorization.

1368736843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8196196.

The product of its digits is 1741824, while the sum is 49.

The square root of 1368736843 is about 36996.4436534108. The cubic root of 1368736843 is about 1110.2990950622.

The spelling of 1368736843 in words is "one billion, three hundred sixty-eight million, seven hundred thirty-six thousand, eight hundred forty-three".