32311405445440 has 84 divisors (see below), whose sum is σ = 84572099695188. Its totient is φ = 11749601966080.

The previous prime is 32311405445393. The next prime is 32311405445441. The reversal of 32311405445440 is 4454450411323.

It can be written as a sum of positive squares in 2 ways, for example, as 11515543623936 + 20795861821504 = 3393456^2 + 4560248^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 32311405445393 and 32311405445402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32311405445441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 417205669 + ... + 417283108.

It is an arithmetic number, because the mean of its divisors is an integer number (1006810710657).

Almost surely, 2^{32311405445440} is an apocalyptic number.

It is an amenable number.

32311405445440 is an abundant number, since it is smaller than the sum of its proper divisors (52260694249748).

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

32311405445440 is a wasteful number, since it uses less digits than its factorization.

32311405445440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834488816 (or 834488795 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 32311405445440 its reverse (4454450411323), we get a palindrome (36765855856763).

The spelling of 32311405445440 in words is "thirty-two trillion, three hundred eleven billion, four hundred five million, four hundred forty-five thousand, four hundred forty".