83420602722 has 54 divisors (see below), whose sum is σ = 190811447307. Its totient is φ = 26335995912.

The previous prime is 83420602711. The next prime is 83420602723. The reversal of 83420602722 is 22720602438.

It is a happy number.

83420602722 is a `hidden beast` number, since 8 + 3 + 4 + 20 + 602 + 7 + 22 = 666.

It can be written as a sum of positive squares in only one way, i.e., 41710301361 + 41710301361 = 204231^2 + 204231^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=204231.

It is not an unprimeable number, because it can be changed into a prime (83420602723) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 23280543 + ... + 23284125.

Almost surely, 2^83420602722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83420602722

83420602722 is an abundant number, since it is smaller than the sum of its proper divisors (107390844585).

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

83420602722 is an equidigital number, since it uses as much as digits as its factorization.

83420602722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7212 (or 3607 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The spelling of 83420602722 in words is "eighty-three billion, four hundred twenty million, six hundred two thousand, seven hundred twenty-two".