345403836949 has 2 divisors, whose sum is σ = 345403836950. Its totient is φ = 345403836948.

The previous prime is 345403836889. The next prime is 345403836977. The reversal of 345403836949 is 949638304543.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200941510225 + 144462326724 = 448265^2 + 380082^2 .

It is a cyclic number.

It is not a de Polignac number, because 345403836949 - 2¹⁷ = 345403705877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345403836893 and 345403836902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345403836049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172701918474 + 172701918475.

It is an arithmetic number, because the mean of its divisors is an integer number (172701918475).

Almost surely, 2^345403836949 is an apocalyptic number.

It is an amenable number.

345403836949 is a deficient number, since it is larger than the sum of its proper divisors (1).

345403836949 is an equidigital number, since it uses as much as digits as its factorization.

345403836949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33592320, while the sum is 58.

The spelling of 345403836949 in words is "three hundred forty-five billion, four hundred three million, eight hundred thirty-six thousand, nine hundred forty-nine".