68496717018 has 32 divisors (see below), whose sum is σ = 137651544576. Its totient is φ = 22722619968.

The previous prime is 68496716909. The next prime is 68496717019. The reversal of 68496717018 is 81071769486.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68496717019) 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, 5684496 + ... + 5696532.

It is an arithmetic number, because the mean of its divisors is an integer number (4301610768).

Almost surely, 2^68496717018 is an apocalyptic number.

68496717018 is an abundant number, since it is smaller than the sum of its proper divisors (69154827558).

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

68496717018 is a wasteful number, since it uses less digits than its factorization.

68496717018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16518.

The product of its (nonzero) digits is 4064256, while the sum is 57.

The spelling of 68496717018 in words is "sixty-eight billion, four hundred ninety-six million, seven hundred seventeen thousand, eighteen".