22719445448 has 108 divisors (see below), whose sum is σ = 51959058795. Its totient is φ = 9285423840.

The previous prime is 22719445433. The next prime is 22719445457. The reversal of 22719445448 is 84454491722.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 11359722724 + 11359722724 = 106582^2 + 106582^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=106582.

It is a junction number, because it is equal to n+sod(n) for n = 22719445396 and 22719445405.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 68638643 + ... + 68638973.

Almost surely, 2^22719445448 is an apocalyptic number.

22719445448 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22719445448

22719445448 is an abundant number, since it is smaller than the sum of its proper divisors (29239613347).

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

22719445448 is an equidigital number, since it uses as much as digits as its factorization.

22719445448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728 (or 363 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 50.

Multiplying 22719445448 by its sum of digits (50), we get a square (1135972272400 = 1065820²).

The spelling of 22719445448 in words is "twenty-two billion, seven hundred nineteen million, four hundred forty-five thousand, four hundred forty-eight".