68909184000 has 704 divisors, whose sum is σ = 258326814720. Its totient is φ = 18114969600.

The previous prime is 68909183963. The next prime is 68909184007. The reversal of 68909184000 is 48190986.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68909184007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 438911922 + ... + 438912078.

Almost surely, 2^68909184000 is an apocalyptic number.

68909184000 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 68909184000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129163407360).

68909184000 is an abundant number, since it is smaller than the sum of its proper divisors (189417630720).

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

68909184000 is a wasteful number, since it uses less digits than its factorization.

68909184000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 68909184000 in words is "sixty-eight billion, nine hundred nine million, one hundred eighty-four thousand".