32281200000 has 1152 divisors, whose sum is σ = 140798800800. Its totient is φ = 7257600000.

The previous prime is 32281199999. The next prime is 32281200053. The reversal of 32281200000 is 218223.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 529199970 + ... + 529200030.

Almost surely, 2^32281200000 is an apocalyptic number.

32281200000 is a gapful number since it is divisible by the number (30) 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 32281200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70399400400).

32281200000 is an abundant number, since it is smaller than the sum of its proper divisors (108517600800).

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

32281200000 is an frugal number, since it uses more digits than its factorization.

32281200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 32281200000 its reverse (218223), we get a palindrome (32281418223).

The spelling of 32281200000 in words is "thirty-two billion, two hundred eighty-one million, two hundred thousand".