340858812449 has 2 divisors, whose sum is σ = 340858812450. Its totient is φ = 340858812448.

The previous prime is 340858812421. The next prime is 340858812551. The reversal of 340858812449 is 944218858043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190853649424 + 150005163025 = 436868^2 + 387305^2 .

It is a cyclic number.

It is not a de Polignac number, because 340858812449 - 2¹⁶ = 340858746913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 340858812394 and 340858812403.

It is not a weakly prime, because it can be changed into another prime (340858812419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170429406224 + 170429406225.

It is an arithmetic number, because the mean of its divisors is an integer number (170429406225).

Almost surely, 2^340858812449 is an apocalyptic number.

It is an amenable number.

340858812449 is a deficient number, since it is larger than the sum of its proper divisors (1).

340858812449 is an equidigital number, since it uses as much as digits as its factorization.

340858812449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8847360, while the sum is 56.

The spelling of 340858812449 in words is "three hundred forty billion, eight hundred fifty-eight million, eight hundred twelve thousand, four hundred forty-nine".