32644240671 has 16 divisors (see below), whose sum is σ = 49891222784. Its totient is φ = 18598495104.

The previous prime is 32644240649. The next prime is 32644240679. The reversal of 32644240671 is 17604244623.

It is not a de Polignac number, because 32644240671 - 2⁹ = 32644240159 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 (32644240679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2299285 + ... + 2313438.

It is an arithmetic number, because the mean of its divisors is an integer number (3118201424).

Almost surely, 2^32644240671 is an apocalyptic number.

32644240671 is a deficient number, since it is larger than the sum of its proper divisors (17246982113).

32644240671 is a wasteful number, since it uses less digits than its factorization.

32644240671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4613070.

The product of its (nonzero) digits is 193536, while the sum is 39.

The spelling of 32644240671 in words is "thirty-two billion, six hundred forty-four million, two hundred forty thousand, six hundred seventy-one".