68146733340 has 216 divisors, whose sum is σ = 243360346320. Its totient is φ = 15388563456.

The previous prime is 68146733339. The next prime is 68146733383. The reversal of 68146733340 is 4333764186.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 685516 + ... + 778604.

It is an arithmetic number, because the mean of its divisors is an integer number (1126668270).

Almost surely, 2^68146733340 is an apocalyptic number.

68146733340 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 68146733340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121680173160).

68146733340 is an abundant number, since it is smaller than the sum of its proper divisors (175213612980).

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

68146733340 is a wasteful number, since it uses less digits than its factorization.

68146733340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93201 (or 93189 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The spelling of 68146733340 in words is "sixty-eight billion, one hundred forty-six million, seven hundred thirty-three thousand, three hundred forty".