20328759372 has 54 divisors (see below), whose sum is σ = 48134187444. Its totient is φ = 6677636160.

The previous prime is 20328759349. The next prime is 20328759377. The reversal of 20328759372 is 27395782302.

It is not an unprimeable number, because it can be changed into a prime (20328759377) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 39018472 + ... + 39018992.

Almost surely, 2^20328759372 is an apocalyptic number.

It is an amenable number.

20328759372 is an abundant number, since it is smaller than the sum of its proper divisors (27805428072).

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

20328759372 is an frugal number, since it uses more digits than its factorization.

20328759372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 48.

Multiplying 20328759372 by its sum of digits (48), we get a square (975780449856 = 987816²).

The spelling of 20328759372 in words is "twenty billion, three hundred twenty-eight million, seven hundred fifty-nine thousand, three hundred seventy-two".