1394656568869 has 2 divisors, whose sum is σ = 1394656568870. Its totient is φ = 1394656568868.

The previous prime is 1394656568827. The next prime is 1394656568941. The reversal of 1394656568869 is 9688656564931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1298904693025 + 95751875844 = 1139695^2 + 309438^2 .

It is a cyclic number.

It is not a de Polignac number, because 1394656568869 - 2¹⁵ = 1394656536101 is a prime.

It is a super-2 number, since 2×1394656568869² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1394656568795 and 1394656568804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1394656568819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697328284434 + 697328284435.

It is an arithmetic number, because the mean of its divisors is an integer number (697328284435).

Almost surely, 2^{1394656568869} is an apocalyptic number.

It is an amenable number.

1394656568869 is a deficient number, since it is larger than the sum of its proper divisors (1).

1394656568869 is an equidigital number, since it uses as much as digits as its factorization.

1394656568869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2015539200, while the sum is 76.

The spelling of 1394656568869 in words is "one trillion, three hundred ninety-four billion, six hundred fifty-six million, five hundred sixty-eight thousand, eight hundred sixty-nine".