1340468140673 has 2 divisors, whose sum is σ = 1340468140674. Its totient is φ = 1340468140672.

The previous prime is 1340468140667. The next prime is 1340468140691. The reversal of 1340468140673 is 3760418640431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 967956887104 + 372511253569 = 983848^2 + 610337^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1340468140673 is a prime.

It is not a weakly prime, because it can be changed into another prime (1340468140603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670234070336 + 670234070337.

It is an arithmetic number, because the mean of its divisors is an integer number (670234070337).

Almost surely, 2^{1340468140673} is an apocalyptic number.

It is an amenable number.

1340468140673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340468140673 is an equidigital number, since it uses as much as digits as its factorization.

1340468140673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 47.

The spelling of 1340468140673 in words is "one trillion, three hundred forty billion, four hundred sixty-eight million, one hundred forty thousand, six hundred seventy-three".