20284264068 has 96 divisors (see below), whose sum is σ = 51422999040. Its totient is φ = 6198005760.

The previous prime is 20284264067. The next prime is 20284264079. The reversal of 20284264068 is 86046248202.

It is a super-2 number, since 2×20284264068² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20284264067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6012030 + ... + 6015402.

It is an arithmetic number, because the mean of its divisors is an integer number (535656240).

Almost surely, 2^20284264068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20284264068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25711499520).

20284264068 is an abundant number, since it is smaller than the sum of its proper divisors (31138734972).

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

20284264068 is a wasteful number, since it uses less digits than its factorization.

20284264068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4157 (or 4155 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 42.

The spelling of 20284264068 in words is "twenty billion, two hundred eighty-four million, two hundred sixty-four thousand, sixty-eight".