20424211712 has 36 divisors (see below), whose sum is σ = 41636083776. Its totient is φ = 9994821120.

The previous prime is 20424211711. The next prime is 20424211721. The reversal of 20424211712 is 21711242402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20424211711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836714 + ... + 860777.

Almost surely, 2^20424211712 is an apocalyptic number.

It is an amenable number.

20424211712 is an abundant number, since it is smaller than the sum of its proper divisors (21211872064).

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

20424211712 is an equidigital number, since it uses as much as digits as its factorization.

20424211712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697554 (or 1697540 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The spelling of 20424211712 in words is "twenty billion, four hundred twenty-four million, two hundred eleven thousand, seven hundred twelve".