32443985500 has 24 divisors (see below), whose sum is σ = 70857665424. Its totient is φ = 12977594000.

The previous prime is 32443985491. The next prime is 32443985551. The reversal of 32443985500 is 558934423.

It is a super-2 number, since 2×32443985500² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32443486 + ... + 32444485.

It is an arithmetic number, because the mean of its divisors is an integer number (2952402726).

Almost surely, 2^32443985500 is an apocalyptic number.

It is an amenable number.

32443985500 is an abundant number, since it is smaller than the sum of its proper divisors (38413679924).

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

32443985500 is a wasteful number, since it uses less digits than its factorization.

32443985500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64887990 (or 64887978 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 32443985500 in words is "thirty-two billion, four hundred forty-three million, nine hundred eighty-five thousand, five hundred".