32728154052 has 144 divisors (see below), whose sum is σ = 85304923200. Its totient is φ = 9757440000.

The previous prime is 32728154051. The next prime is 32728154077. The reversal of 32728154052 is 25045182723.

It is a super-2 number, since 2×32728154052² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 32728154052.

It is not an unprimeable number, because it can be changed into a prime (32728154051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32435724 + ... + 32436732.

It is an arithmetic number, because the mean of its divisors is an integer number (592395300).

Almost surely, 2^32728154052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32728154052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42652461600).

32728154052 is an abundant number, since it is smaller than the sum of its proper divisors (52576769148).

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

32728154052 is a wasteful number, since it uses less digits than its factorization.

32728154052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378 (or 1365 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The spelling of 32728154052 in words is "thirty-two billion, seven hundred twenty-eight million, one hundred fifty-four thousand, fifty-two".