639068259606 has 32 divisors (see below), whose sum is σ = 1484673808128. Its totient is φ = 179597636640.

The previous prime is 639068259497. The next prime is 639068259637. The reversal of 639068259606 is 606952860936.

It is a super-3 number, since 3×639068259606³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 639068259606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124718020 + ... + 124723143.

It is an arithmetic number, because the mean of its divisors is an integer number (46396056504).

Almost surely, 2^639068259606 is an apocalyptic number.

639068259606 is an abundant number, since it is smaller than the sum of its proper divisors (845605548522).

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

639068259606 is a wasteful number, since it uses less digits than its factorization.

639068259606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249441236.

The product of its (nonzero) digits is 25194240, while the sum is 60.

The spelling of 639068259606 in words is "six hundred thirty-nine billion, sixty-eight million, two hundred fifty-nine thousand, six hundred six".