34345516647 has 16 divisors (see below), whose sum is σ = 49769091680. Its totient is φ = 20941794432.

The previous prime is 34345516643. The next prime is 34345516657. The reversal of 34345516647 is 74661554343.

It is not a de Polignac number, because 34345516647 - 2² = 34345516643 is a prime.

It is a super-2 number, since 2×34345516647² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34345516596 and 34345516605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34345516643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4035448 + ... + 4043949.

It is an arithmetic number, because the mean of its divisors is an integer number (3110568230).

Almost surely, 2^34345516647 is an apocalyptic number.

34345516647 is a deficient number, since it is larger than the sum of its proper divisors (15423575033).

34345516647 is a wasteful number, since it uses less digits than its factorization.

34345516647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8079522.

The product of its digits is 3628800, while the sum is 48.

The spelling of 34345516647 in words is "thirty-four billion, three hundred forty-five million, five hundred sixteen thousand, six hundred forty-seven".