340444334653 has 2 divisors, whose sum is σ = 340444334654. Its totient is φ = 340444334652.

The previous prime is 340444334651. The next prime is 340444334723. The reversal of 340444334653 is 356433444043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180826506169 + 159617828484 = 425237^2 + 399522^2 .

It is a cyclic number.

It is not a de Polignac number, because 340444334653 - 2¹ = 340444334651 is a prime.

Together with 340444334651, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340444334651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170222167326 + 170222167327.

It is an arithmetic number, because the mean of its divisors is an integer number (170222167327).

Almost surely, 2^340444334653 is an apocalyptic number.

It is an amenable number.

340444334653 is a deficient number, since it is larger than the sum of its proper divisors (1).

340444334653 is an equidigital number, since it uses as much as digits as its factorization.

340444334653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2488320, while the sum is 43.

Adding to 340444334653 its reverse (356433444043), we get a palindrome (696877778696).

The spelling of 340444334653 in words is "three hundred forty billion, four hundred forty-four million, three hundred thirty-four thousand, six hundred fifty-three".