32855537988 has 144 divisors (see below), whose sum is σ = 103743552640. Its totient is φ = 8535808512.

The previous prime is 32855537987. The next prime is 32855537989. The reversal of 32855537988 is 88973555823.

32855537988 is a `hidden beast` number, since 3 + 2 + 8 + 5 + 5 + 537 + 98 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (32855537987) and next prime (32855537989).

It is a super-2 number, since 2×32855537988² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (32855537987) 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 47 ways as a sum of consecutive naturals, for example, 144648 + ... + 294336.

Almost surely, 2^32855537988 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 32855537988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51871776320).

32855537988 is an abundant number, since it is smaller than the sum of its proper divisors (70888014652).

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

32855537988 is a wasteful number, since it uses less digits than its factorization.

32855537988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149786 (or 149781 counting only the distinct ones).

The product of its digits is 72576000, while the sum is 63.

The spelling of 32855537988 in words is "thirty-two billion, eight hundred fifty-five million, five hundred thirty-seven thousand, nine hundred eighty-eight".