34345477709 has 2 divisors, whose sum is σ = 34345477710. Its totient is φ = 34345477708.

The previous prime is 34345477703. The next prime is 34345477721. The reversal of 34345477709 is 90777454343.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24776334025 + 9569143684 = 157405^2 + 97822^2 .

It is a cyclic number.

It is not a de Polignac number, because 34345477709 - 2¹⁶ = 34345412173 is a prime.

It is a super-2 number, since 2×34345477709² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34345477703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17172738854 + 17172738855.

It is an arithmetic number, because the mean of its divisors is an integer number (17172738855).

Almost surely, 2^34345477709 is an apocalyptic number.

It is an amenable number.

34345477709 is a deficient number, since it is larger than the sum of its proper divisors (1).

34345477709 is an equidigital number, since it uses as much as digits as its factorization.

34345477709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8890560, while the sum is 53.

The spelling of 34345477709 in words is "thirty-four billion, three hundred forty-five million, four hundred seventy-seven thousand, seven hundred nine".