68718952448 has 40 divisors (see below), whose sum is σ = 137438822400. Its totient is φ = 34359214080.

The previous prime is 68718952447. The next prime is 68718952453. The reversal of 68718952448 is 84425981786.

It is a Cunningham number, because it is equal to 262143²-1.

It is a super-3 number, since 3×68718952448³ (a number of 33 digits) contains 333 as substring.

It is a nialpdrome in base 2, base 4, base 8 and base 16.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68718952447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458753 + ... + 589823.

It is an arithmetic number, because the mean of its divisors is an integer number (3435970560).

Almost surely, 2^68718952448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68718952448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68719411200).

68718952448 is an abundant number, since it is smaller than the sum of its proper divisors (68719869952).

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

68718952448 is an frugal number, since it uses more digits than its factorization.

68718952448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131109 (or 131073 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 62.

The spelling of 68718952448 in words is "sixty-eight billion, seven hundred eighteen million, nine hundred fifty-two thousand, four hundred forty-eight".