638586582053 has 16 divisors (see below), whose sum is σ = 753510506496. Its totient is φ = 529594236720.

The previous prime is 638586582037. The next prime is 638586582059. The reversal of 638586582053 is 350285685836.

It is a cyclic number.

It is not a de Polignac number, because 638586582053 - 2⁴ = 638586582037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 638586581983 and 638586582001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (638586582059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 763850 + ... + 1364052.

It is an arithmetic number, because the mean of its divisors is an integer number (47094406656).

Almost surely, 2^638586582053 is an apocalyptic number.

It is an amenable number.

638586582053 is a deficient number, since it is larger than the sum of its proper divisors (114923924443).

638586582053 is a wasteful number, since it uses less digits than its factorization.

638586582053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605144.

The product of its (nonzero) digits is 41472000, while the sum is 59.

The spelling of 638586582053 in words is "six hundred thirty-eight billion, five hundred eighty-six million, five hundred eighty-two thousand, fifty-three".