68852544525887 has 16 divisors (see below), whose sum is σ = 69548751401472. Its totient is φ = 68157334065600.

The previous prime is 68852544525829. The next prime is 68852544525901. The reversal of 68852544525887 is 78852544525886.

It is a cyclic number.

It is not a de Polignac number, because 68852544525887 - 2¹² = 68852544521791 is a prime.

It is a super-2 number, since 2×68852544525887² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68852544525827) 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, 773136512 + ... + 773225562.

It is an arithmetic number, because the mean of its divisors is an integer number (4346796962592).

Almost surely, 2^{68852544525887} is an apocalyptic number.

68852544525887 is a deficient number, since it is larger than the sum of its proper divisors (696206875585).

68852544525887 is a wasteful number, since it uses less digits than its factorization.

68852544525887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94558.

The product of its digits is 6881280000, while the sum is 77.

Subtracting 68852544525887 from its reverse (78852544525886), we obtain a palindrome (9999999999999).

The spelling of 68852544525887 in words is "sixty-eight trillion, eight hundred fifty-two billion, five hundred forty-four million, five hundred twenty-five thousand, eight hundred eighty-seven".