32628409528 has 96 divisors (see below), whose sum is σ = 76072953600. Its totient is φ = 12969590400.

The previous prime is 32628409511. The next prime is 32628409537. The reversal of 32628409528 is 82590482623.

It is a super-2 number, since 2×32628409528² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 224833 + ... + 340303.

It is an arithmetic number, because the mean of its divisors is an integer number (792426600).

Almost surely, 2^32628409528 is an apocalyptic number.

32628409528 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32628409528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38036476800).

32628409528 is an abundant number, since it is smaller than the sum of its proper divisors (43444544072).

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

32628409528 is a wasteful number, since it uses less digits than its factorization.

32628409528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115533 (or 115516 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 32628409528 in words is "thirty-two billion, six hundred twenty-eight million, four hundred nine thousand, five hundred twenty-eight".