52728449320 has 32 divisors (see below), whose sum is σ = 122466078720. Its totient is φ = 20411012160.

The previous prime is 52728449231. The next prime is 52728449341. The reversal of 52728449320 is 2394482725.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21260232 + ... + 21262711.

It is an arithmetic number, because the mean of its divisors is an integer number (3827064960).

Almost surely, 2^52728449320 is an apocalyptic number.

It is an amenable number.

52728449320 is an abundant number, since it is smaller than the sum of its proper divisors (69737629400).

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

52728449320 is a wasteful number, since it uses less digits than its factorization.

52728449320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42522985 (or 42522981 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 52728449320 in words is "fifty-two billion, seven hundred twenty-eight million, four hundred forty-nine thousand, three hundred twenty".