32820956728 has 32 divisors (see below), whose sum is σ = 70385592960. Its totient is φ = 14055130080.

The previous prime is 32820956723. The next prime is 32820956747. The reversal of 32820956728 is 82765902823.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32820956723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156558 + ... + 300253.

It is an arithmetic number, because the mean of its divisors is an integer number (2199549780).

Almost surely, 2^32820956728 is an apocalyptic number.

It is an amenable number.

32820956728 is an abundant number, since it is smaller than the sum of its proper divisors (37564636232).

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

32820956728 is a wasteful number, since it uses less digits than its factorization.

32820956728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458107 (or 458103 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 52.

It can be divided in two parts, 3282095 and 6728, that added together give a palindrome (3288823).

The spelling of 32820956728 in words is "thirty-two billion, eight hundred twenty million, nine hundred fifty-six thousand, seven hundred twenty-eight".