32257720000 has 280 divisors, whose sum is σ = 87982836480. Its totient is φ = 11633280000.

The previous prime is 32257719983. The next prime is 32257720039. The reversal of 32257720000 is 2775223.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 73479781 + ... + 73480219.

It is an arithmetic number, because the mean of its divisors is an integer number (314224416).

Almost surely, 2^32257720000 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 32257720000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43991418240).

32257720000 is an abundant number, since it is smaller than the sum of its proper divisors (55725116480).

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

32257720000 is a wasteful number, since it uses less digits than its factorization.

32257720000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

It can be divided in two parts, 32257 and 720000, that added together give a palindrome (752257).

The spelling of 32257720000 in words is "thirty-two billion, two hundred fifty-seven million, seven hundred twenty thousand".