20329628089 has 8 divisors (see below), whose sum is σ = 20462784768. Its totient is φ = 20196518160.

The previous prime is 20329628071. The next prime is 20329628153. The reversal of 20329628089 is 98082692302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20329628089 - 2¹¹ = 20329626041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20329628029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1454874 + ... + 1468780.

It is an arithmetic number, because the mean of its divisors is an integer number (2557848096).

Almost surely, 2^20329628089 is an apocalyptic number.

It is an amenable number.

20329628089 is a deficient number, since it is larger than the sum of its proper divisors (133156679).

20329628089 is a wasteful number, since it uses less digits than its factorization.

20329628089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23375.

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 20329628089 in words is "twenty billion, three hundred twenty-nine million, six hundred twenty-eight thousand, eighty-nine".