32721832090 has 12 divisors (see below), whose sum is σ = 58900327434. Its totient is φ = 13088504024.

The previous prime is 32721832037. The next prime is 32721832123. The reversal of 32721832090 is 9023812723.

It can be written as a sum of positive squares in only one way, i.e., 29449648881 + 3272183209 = 171609^2 + 57203^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 543429 + ... + 600631.

Almost surely, 2^32721832090 is an apocalyptic number.

32721832090 is a deficient number, since it is larger than the sum of its proper divisors (26178495344).

32721832090 is an frugal number, since it uses more digits than its factorization.

32721832090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114413 (or 57210 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 32721832090 in words is "thirty-two billion, seven hundred twenty-one million, eight hundred thirty-two thousand, ninety".