68248440659 has 8 divisors (see below), whose sum is σ = 78001653600. Its totient is φ = 58496086656.

The previous prime is 68248440641. The next prime is 68248440671. The reversal of 68248440659 is 95604484286.

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

It is a de Polignac number, because none of the positive numbers 2^k-68248440659 is a prime.

It is a super-3 number, since 3×68248440659³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68248440679) 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, 34364 + ... + 371049.

It is an arithmetic number, because the mean of its divisors is an integer number (9750206700).

Almost surely, 2^68248440659 is an apocalyptic number.

68248440659 is a deficient number, since it is larger than the sum of its proper divisors (9753212941).

68248440659 is a wasteful number, since it uses less digits than its factorization.

68248440659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429469.

The product of its (nonzero) digits is 13271040, while the sum is 56.

The spelling of 68248440659 in words is "sixty-eight billion, two hundred forty-eight million, four hundred forty thousand, six hundred fifty-nine".