32256530688 has 144 divisors (see below), whose sum is σ = 92473307136. Its totient is φ = 9952757760.

The previous prime is 32256530687. The next prime is 32256530723. The reversal of 32256530688 is 88603565223.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (32256530687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518131 + ... + 577037.

It is an arithmetic number, because the mean of its divisors is an integer number (642175744).

Almost surely, 2^32256530688 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 32256530688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46236653568).

32256530688 is an abundant number, since it is smaller than the sum of its proper divisors (60216776448).

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

32256530688 is a wasteful number, since it uses less digits than its factorization.

32256530688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58980 (or 58966 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 32256530688 in words is "thirty-two billion, two hundred fifty-six million, five hundred thirty thousand, six hundred eighty-eight".