68547993600 has 672 divisors, whose sum is σ = 241828807680. Its totient is φ = 17104896000.

The previous prime is 68547993599. The next prime is 68547993607. The reversal of 68547993600 is 639974586.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68547993607) 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 in 47 ways as a sum of consecutive naturals, for example, 1123737570 + ... + 1123737630.

Almost surely, 2^68547993600 is an apocalyptic number.

68547993600 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 68547993600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120914403840).

68547993600 is an abundant number, since it is smaller than the sum of its proper divisors (173280814080).

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

68547993600 is a wasteful number, since it uses less digits than its factorization.

68547993600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 57.

The spelling of 68547993600 in words is "sixty-eight billion, five hundred forty-seven million, nine hundred ninety-three thousand, six hundred".