68209255584669 has 8 divisors (see below), whose sum is σ = 93060689790112. Its totient is φ = 44415329217840.

The previous prime is 68209255584661. The next prime is 68209255584689. The reversal of 68209255584669 is 96648555290286.

68209255584669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68209255584669 - 2³ = 68209255584661 is a prime.

It is a super-2 number, since 2×68209255584669² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68209255584669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68209255584661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264376959502 + ... + 264376959759.

It is an arithmetic number, because the mean of its divisors is an integer number (11632586223764).

Almost surely, 2^{68209255584669} is an apocalyptic number.

It is an amenable number.

68209255584669 is a deficient number, since it is larger than the sum of its proper divisors (24851434205443).

68209255584669 is a wasteful number, since it uses less digits than its factorization.

68209255584669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528753919307.

The product of its (nonzero) digits is 2239488000, while the sum is 75.

The spelling of 68209255584669 in words is "sixty-eight trillion, two hundred nine billion, two hundred fifty-five million, five hundred eighty-four thousand, six hundred sixty-nine".