32562721408 has 128 divisors (see below), whose sum is σ = 79858851840. Its totient is φ = 12917836800.

The previous prime is 32562721361. The next prime is 32562721459. The reversal of 32562721408 is 80412726523.

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 613363 + ... + 664333.

It is an arithmetic number, because the mean of its divisors is an integer number (623897280).

Almost surely, 2^32562721408 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 32562721408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39929425920).

32562721408 is an abundant number, since it is smaller than the sum of its proper divisors (47296130432).

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

32562721408 is a wasteful number, since it uses less digits than its factorization.

32562721408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51046 (or 51034 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 32562721408 in words is "thirty-two billion, five hundred sixty-two million, seven hundred twenty-one thousand, four hundred eight".