68917490496 has 196 divisors, whose sum is σ = 206201519524. Its totient is φ = 22842777600.

The previous prime is 68917490429. The next prime is 68917490497. The reversal of 68917490496 is 69409471986.

It can be written as a sum of positive squares in 2 ways, for example, as 9447840000 + 59469650496 = 97200^2 + 243864^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68917490497) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 8440656 + ... + 8448816.

It is an arithmetic number, because the mean of its divisors is an integer number (1052048569).

Almost surely, 2^68917490496 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 68917490496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103100759762).

68917490496 is an abundant number, since it is smaller than the sum of its proper divisors (137284029028).

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

68917490496 is an equidigital number, since it uses as much as digits as its factorization.

68917490496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8372 (or 8347 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 63.

The spelling of 68917490496 in words is "sixty-eight billion, nine hundred seventeen million, four hundred ninety thousand, four hundred ninety-six".