32447013643 has 16 divisors (see below), whose sum is σ = 35838028800. Its totient is φ = 29130354880.

The previous prime is 32447013593. The next prime is 32447013649. The reversal of 32447013643 is 34631074423.

It is not a de Polignac number, because 32447013643 - 2¹⁷ = 32446882571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32447013649) 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, 801630 + ... + 841132.

It is an arithmetic number, because the mean of its divisors is an integer number (2239876800).

Almost surely, 2^32447013643 is an apocalyptic number.

32447013643 is a deficient number, since it is larger than the sum of its proper divisors (3391015157).

32447013643 is a wasteful number, since it uses less digits than its factorization.

32447013643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40442.

The product of its (nonzero) digits is 145152, while the sum is 37.

The spelling of 32447013643 in words is "thirty-two billion, four hundred forty-seven million, thirteen thousand, six hundred forty-three".