68444586308280 has 192 divisors, whose sum is σ = 254107036085760. Its totient is φ = 14441055542784.

The previous prime is 68444586308251. The next prime is 68444586308299. The reversal of 68444586308280 is 8280368544486.

It is a super-2 number, since 2×68444586308280² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 240928012 + ... + 241211931.

It is an arithmetic number, because the mean of its divisors is an integer number (1323474146280).

Almost surely, 2^{68444586308280} is an apocalyptic number.

68444586308280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68444586308280 is an abundant number, since it is smaller than the sum of its proper divisors (185662449777480).

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

68444586308280 is a wasteful number, since it uses less digits than its factorization.

68444586308280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482139990 (or 482139973 counting only the distinct ones).

The product of its (nonzero) digits is 283115520, while the sum is 66.

The spelling of 68444586308280 in words is "sixty-eight trillion, four hundred forty-four billion, five hundred eighty-six million, three hundred eight thousand, two hundred eighty".