340706673389 has 2 divisors, whose sum is σ = 340706673390. Its totient is φ = 340706673388.

The previous prime is 340706673367. The next prime is 340706673397. The reversal of 340706673389 is 983376607043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 332663632900 + 8043040489 = 576770^2 + 89683^2 .

It is a cyclic number.

It is not a de Polignac number, because 340706673389 - 2¹⁶ = 340706607853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340706675389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170353336694 + 170353336695.

It is an arithmetic number, because the mean of its divisors is an integer number (170353336695).

Almost surely, 2^340706673389 is an apocalyptic number.

It is an amenable number.

340706673389 is a deficient number, since it is larger than the sum of its proper divisors (1).

340706673389 is an equidigital number, since it uses as much as digits as its factorization.

340706673389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13716864, while the sum is 56.

The spelling of 340706673389 in words is "three hundred forty billion, seven hundred six million, six hundred seventy-three thousand, three hundred eighty-nine".