32505470647 has 6 divisors (see below), whose sum is σ = 35198231712. Its totient is φ = 30005049672.

The previous prime is 32505470581. The next prime is 32505470663. The reversal of 32505470647 is 74607450523.

It is not a de Polignac number, because 32505470647 - 2⁷ = 32505470519 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 (32505470677) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 96169863 + ... + 96170200.

It is an arithmetic number, because the mean of its divisors is an integer number (5866371952).

Almost surely, 2^32505470647 is an apocalyptic number.

32505470647 is a deficient number, since it is larger than the sum of its proper divisors (2692761065).

32505470647 is a wasteful number, since it uses less digits than its factorization.

32505470647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192340089 (or 192340076 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 43.

The spelling of 32505470647 in words is "thirty-two billion, five hundred five million, four hundred seventy thousand, six hundred forty-seven".