20281450719072 has 192 divisors, whose sum is σ = 56200377139200. Its totient is φ = 6386462392320.

The previous prime is 20281450719059. The next prime is 20281450719073. The reversal of 20281450719072 is 27091705418202.

It is a super-2 number, since 2×20281450719072² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20281450719073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 990343329 + ... + 990363807.

It is an arithmetic number, because the mean of its divisors is an integer number (292710297600).

Almost surely, 2^{20281450719072} 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 20281450719072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28100188569600).

20281450719072 is an abundant number, since it is smaller than the sum of its proper divisors (35918926420128).

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

20281450719072 is a wasteful number, since it uses less digits than its factorization.

20281450719072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22029 (or 22021 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 48.

The spelling of 20281450719072 in words is "twenty trillion, two hundred eighty-one billion, four hundred fifty million, seven hundred nineteen thousand, seventy-two".