68210888499 has 48 divisors (see below), whose sum is σ = 109123857024. Its totient is φ = 40785120000.

The previous prime is 68210888491. The next prime is 68210888503. The reversal of 68210888499 is 99488801286.

68210888499 is a `hidden beast` number, since 68 + 2 + 1 + 0 + 8 + 88 + 499 = 666.

It is not a de Polignac number, because 68210888499 - 2³ = 68210888491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68210888491) 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 47 ways as a sum of consecutive naturals, for example, 3240589 + ... + 3261569.

It is an arithmetic number, because the mean of its divisors is an integer number (2273413688).

Almost surely, 2^68210888499 is an apocalyptic number.

68210888499 is a deficient number, since it is larger than the sum of its proper divisors (40912968525).

68210888499 is a wasteful number, since it uses less digits than its factorization.

68210888499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21788 (or 21785 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 63.

The spelling of 68210888499 in words is "sixty-eight billion, two hundred ten million, eight hundred eighty-eight thousand, four hundred ninety-nine".