68989181760 has 448 divisors, whose sum is σ = 253765751040. Its totient is φ = 17627258880.

The previous prime is 68989181713. The next prime is 68989181777. The reversal of 68989181760 is 6718198986.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21416950 + ... + 21420170.

Almost surely, 2^68989181760 is an apocalyptic number.

68989181760 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 68989181760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126882875520).

68989181760 is an abundant number, since it is smaller than the sum of its proper divisors (184776569280).

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

68989181760 is a wasteful number, since it uses less digits than its factorization.

68989181760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3351 (or 3335 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 63.

The spelling of 68989181760 in words is "sixty-eight billion, nine hundred eighty-nine million, one hundred eighty-one thousand, seven hundred sixty".