1689847369013 has 2 divisors, whose sum is σ = 1689847369014. Its totient is φ = 1689847369012.

The previous prime is 1689847368983. The next prime is 1689847369051. The reversal of 1689847369013 is 3109637489861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1138655458084 + 551191910929 = 1067078^2 + 742423^2 .

It is a cyclic number.

It is not a de Polignac number, because 1689847369013 - 2⁶ = 1689847368949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1689847369813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 844923684506 + 844923684507.

It is an arithmetic number, because the mean of its divisors is an integer number (844923684507).

Almost surely, 2^{1689847369013} is an apocalyptic number.

It is an amenable number.

1689847369013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1689847369013 is an equidigital number, since it uses as much as digits as its factorization.

1689847369013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47029248, while the sum is 65.

The spelling of 1689847369013 in words is "one trillion, six hundred eighty-nine billion, eight hundred forty-seven million, three hundred sixty-nine thousand, thirteen".