68583528587 has 16 divisors (see below), whose sum is σ = 83064102912. Its totient is φ = 55279708800.

The previous prime is 68583528577. The next prime is 68583528613. The reversal of 68583528587 is 78582538586.

It is a cyclic number.

It is not a de Polignac number, because 68583528587 - 2⁴ = 68583528571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68583528547) 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 15 ways as a sum of consecutive naturals, for example, 113393 + ... + 387330.

It is an arithmetic number, because the mean of its divisors is an integer number (5191506432).

Almost surely, 2^68583528587 is an apocalyptic number.

68583528587 is a deficient number, since it is larger than the sum of its proper divisors (14480574325).

68583528587 is a wasteful number, since it uses less digits than its factorization.

68583528587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501898.

The product of its digits is 129024000, while the sum is 65.

Subtracting 68583528587 from its reverse (78582538586), we obtain a palindrome (9999009999).

The spelling of 68583528587 in words is "sixty-eight billion, five hundred eighty-three million, five hundred twenty-eight thousand, five hundred eighty-seven".