20493067712 has 112 divisors (see below), whose sum is σ = 45832288320. Its totient is φ = 9020571648.

The previous prime is 20493067711. The next prime is 20493067717. The reversal of 20493067712 is 21776039402.

It is a self number, because there is not a number n which added to its sum of digits gives 20493067712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20493067711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7442528 + ... + 7445280.

It is an arithmetic number, because the mean of its divisors is an integer number (409216860).

Almost surely, 2^20493067712 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 20493067712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22916144160).

20493067712 is an abundant number, since it is smaller than the sum of its proper divisors (25339220608).

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

20493067712 is a wasteful number, since it uses less digits than its factorization.

20493067712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3190 (or 3180 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 41.

The spelling of 20493067712 in words is "twenty billion, four hundred ninety-three million, sixty-seven thousand, seven hundred twelve".