68584005522 has 54 divisors (see below), whose sum is σ = 157897445589. Its totient is φ = 21510624960.

The previous prime is 68584005487. The next prime is 68584005559. The reversal of 68584005522 is 22550048586.

It is a happy number.

68584005522 is a `hidden beast` number, since 6 + 8 + 58 + 40 + 0 + 552 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 62769790521 + 5814215001 = 250539^2 + 76251^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=185181.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 18886647 + ... + 18890277.

Almost surely, 2^68584005522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68584005522

68584005522 is an abundant number, since it is smaller than the sum of its proper divisors (89313440067).

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

68584005522 is an equidigital number, since it uses as much as digits as its factorization.

68584005522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7304 (or 3653 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 45.

The spelling of 68584005522 in words is "sixty-eight billion, five hundred eighty-four million, five thousand, five hundred twenty-two".