68899968000 has 264 divisors, whose sum is σ = 248290209960. Its totient is φ = 18373017600.

The previous prime is 68899967971. The next prime is 68899968023. The reversal of 68899968000 is 86999886.

It can be written as a sum of positive squares in 4 ways, for example, as 12616704 + 68887351296 = 3552^2 + 262464^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1122096 + ... + 1181904.

Almost surely, 2^68899968000 is an apocalyptic number.

68899968000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68899968000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124145104980).

68899968000 is an abundant number, since it is smaller than the sum of its proper divisors (179390241960).

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

68899968000 is a wasteful number, since it uses less digits than its factorization.

68899968000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59850 (or 59819 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 63.

The spelling of 68899968000 in words is "sixty-eight billion, eight hundred ninety-nine million, nine hundred sixty-eight thousand".