32121722880 has 672 divisors, whose sum is σ = 124822086480. Its totient is φ = 7882997760.

The previous prime is 32121722851. The next prime is 32121722891. The reversal of 32121722880 is 8822712123.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 97044315 + ... + 97044645.

Almost surely, 2^32121722880 is an apocalyptic number.

32121722880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32121722880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62411043240).

32121722880 is an abundant number, since it is smaller than the sum of its proper divisors (92700363600).

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

32121722880 is an equidigital number, since it uses as much as digits as its factorization.

32121722880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 32121722880 in words is "thirty-two billion, one hundred twenty-one million, seven hundred twenty-two thousand, eight hundred eighty".