32555432928 has 96 divisors (see below), whose sum is σ = 86817419136. Its totient is φ = 10679505408.

The previous prime is 32555432927. The next prime is 32555432947. The reversal of 32555432928 is 82923455523.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32555432927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9536950 + ... + 9540362.

It is an arithmetic number, because the mean of its divisors is an integer number (904348116).

Almost surely, 2^32555432928 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 32555432928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43408709568).

32555432928 is an abundant number, since it is smaller than the sum of its proper divisors (54261986208).

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

32555432928 is a wasteful number, since it uses less digits than its factorization.

32555432928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4976 (or 4968 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 48.

The spelling of 32555432928 in words is "thirty-two billion, five hundred fifty-five million, four hundred thirty-two thousand, nine hundred twenty-eight".