32513353420 has 48 divisors (see below), whose sum is σ = 70073601696. Its totient is φ = 12664512000.

The previous prime is 32513353333. The next prime is 32513353421. The reversal of 32513353420 is 2435331523.

It is a super-2 number, since 2×32513353420² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (32513353421) 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, 406975 + ... + 480265.

It is an arithmetic number, because the mean of its divisors is an integer number (1459866702).

Almost surely, 2^32513353420 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 32513353420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35036800848).

32513353420 is an abundant number, since it is smaller than the sum of its proper divisors (37560248276).

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

32513353420 is a wasteful number, since it uses less digits than its factorization.

32513353420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73882 (or 73880 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 32513353420 its reverse (2435331523), we get a palindrome (34948684943).

The spelling of 32513353420 in words is "thirty-two billion, five hundred thirteen million, three hundred fifty-three thousand, four hundred twenty".