22235857488 has 120 divisors (see below), whose sum is σ = 67060473480. Its totient is φ = 6837304320.

The previous prime is 22235857439. The next prime is 22235857517. The reversal of 22235857488 is 88475853222.

It can be written as a sum of positive squares in 4 ways, for example, as 1468944 + 22234388544 = 1212^2 + 149112^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3870298 + ... + 3876038.

It is an arithmetic number, because the mean of its divisors is an integer number (558837279).

Almost surely, 2^22235857488 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 22235857488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33530236740).

22235857488 is an abundant number, since it is smaller than the sum of its proper divisors (44824615992).

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

22235857488 is a wasteful number, since it uses less digits than its factorization.

22235857488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7837 (or 7828 counting only the distinct ones).

The product of its digits is 8601600, while the sum is 54.

The spelling of 22235857488 in words is "twenty-two billion, two hundred thirty-five million, eight hundred fifty-seven thousand, four hundred eighty-eight".