32755887690 has 128 divisors (see below), whose sum is σ = 85990367232. Its totient is φ = 7961479680.

The previous prime is 32755887673. The next prime is 32755887751. The reversal of 32755887690 is 9678855723.

It is a super-2 number, since 2×32755887690² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1203007 + ... + 1229933.

It is an arithmetic number, because the mean of its divisors is an integer number (671799744).

Almost surely, 2^32755887690 is an apocalyptic number.

32755887690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 32755887690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42995183616).

32755887690 is an abundant number, since it is smaller than the sum of its proper divisors (53234479542).

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

32755887690 is a wasteful number, since it uses less digits than its factorization.

32755887690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27044.

The product of its (nonzero) digits is 25401600, while the sum is 60.

The spelling of 32755887690 in words is "thirty-two billion, seven hundred fifty-five million, eight hundred eighty-seven thousand, six hundred ninety".