347664405671 has 24 divisors (see below), whose sum is σ = 386001301392. Its totient is φ = 312872313600.

The previous prime is 347664405667. The next prime is 347664405689. The reversal of 347664405671 is 176504466743.

It is not a de Polignac number, because 347664405671 - 2² = 347664405667 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347664405071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18802751 + ... + 18821231.

It is an arithmetic number, because the mean of its divisors is an integer number (16083387558).

Almost surely, 2^347664405671 is an apocalyptic number.

347664405671 is a deficient number, since it is larger than the sum of its proper divisors (38336895721).

347664405671 is a wasteful number, since it uses less digits than its factorization.

347664405671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20063 (or 20052 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 53.

The spelling of 347664405671 in words is "three hundred forty-seven billion, six hundred sixty-four million, four hundred five thousand, six hundred seventy-one".