20329421708 has 24 divisors (see below), whose sum is σ = 36130248000. Its totient is φ = 10007232768.

The previous prime is 20329421701. The next prime is 20329421711. The reversal of 20329421708 is 80712492302.

It is not an unprimeable number, because it can be changed into a prime (20329421701) 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, 18116 + ... + 202452.

It is an arithmetic number, because the mean of its divisors is an integer number (1505427000).

Almost surely, 2^20329421708 is an apocalyptic number.

It is an amenable number.

20329421708 is a deficient number, since it is larger than the sum of its proper divisors (15800826292).

20329421708 is a wasteful number, since it uses less digits than its factorization.

20329421708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184769 (or 184767 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 20329421708 in words is "twenty billion, three hundred twenty-nine million, four hundred twenty-one thousand, seven hundred eight".