68365918740 has 192 divisors, whose sum is σ = 221210486784. Its totient is φ = 15452785152.

The previous prime is 68365918711. The next prime is 68365918757. The reversal of 68365918740 is 4781956386.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35366814 + ... + 35368746.

It is an arithmetic number, because the mean of its divisors is an integer number (1152137952).

Almost surely, 2^68365918740 is an apocalyptic number.

68365918740 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 68365918740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110605243392).

68365918740 is an abundant number, since it is smaller than the sum of its proper divisors (152844568044).

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

68365918740 is a wasteful number, since it uses less digits than its factorization.

68365918740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846 (or 2844 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 68365918740 in words is "sixty-eight billion, three hundred sixty-five million, nine hundred eighteen thousand, seven hundred forty".