22754202642 has 56 divisors (see below), whose sum is σ = 51275755980. Its totient is φ = 7569586080.

The previous prime is 22754202607. The next prime is 22754202649. The reversal of 22754202642 is 24620245722.

22754202642 is a `hidden beast` number, since 2 + 2 + 7 + 5 + 4 + 2 + 0 + 2 + 642 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16985648241 + 5768554401 = 130329^2 + 75951^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22754202597 and 22754202606.

It is not an unprimeable number, because it can be changed into a prime (22754202649) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 726792 + ... + 757452.

Almost surely, 2^22754202642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22754202642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25637877990).

22754202642 is an abundant number, since it is smaller than the sum of its proper divisors (28521553338).

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

22754202642 is an equidigital number, since it uses as much as digits as its factorization.

22754202642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31190 (or 31175 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 36.

The spelling of 22754202642 in words is "twenty-two billion, seven hundred fifty-four million, two hundred two thousand, six hundred forty-two".