1368834641 has 2 divisors, whose sum is σ = 1368834642. Its totient is φ = 1368834640.

The previous prime is 1368834617. The next prime is 1368834661. The reversal of 1368834641 is 1464388631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1291324225 + 77510416 = 35935^2 + 8804^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1368834641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1368834592 and 1368834601.

It is not a weakly prime, because it can be changed into another prime (1368834661) 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 as a sum of consecutive naturals, namely, 684417320 + 684417321.

It is an arithmetic number, because the mean of its divisors is an integer number (684417321).

Almost surely, 2^1368834641 is an apocalyptic number.

It is an amenable number.

1368834641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1368834641 is an equidigital number, since it uses as much as digits as its factorization.

1368834641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 44.

The square root of 1368834641 is about 36997.7653514371. The cubic root of 1368834641 is about 1110.3255385298.

The spelling of 1368834641 in words is "one billion, three hundred sixty-eight million, eight hundred thirty-four thousand, six hundred forty-one".