32160280728 has 16 divisors (see below), whose sum is σ = 80400701880. Its totient is φ = 10720093568.

The previous prime is 32160280727. The next prime is 32160280751. The reversal of 32160280728 is 82708206123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32160280727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670005825 + ... + 670005872.

Almost surely, 2^32160280728 is an apocalyptic number.

It is an amenable number.

32160280728 is an abundant number, since it is smaller than the sum of its proper divisors (48240421152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

32160280728 is a wasteful number, since it uses less digits than its factorization.

32160280728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340011706 (or 1340011702 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The spelling of 32160280728 in words is "thirty-two billion, one hundred sixty million, two hundred eighty thousand, seven hundred twenty-eight".