68218644681286 has 8 divisors (see below), whose sum is σ = 111630509478504. Its totient is φ = 31008474855120.

The previous prime is 68218644681247. The next prime is 68218644681289.

68218644681286 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×68218644681286² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68218644681289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1550423742735 + ... + 1550423742778.

It is an arithmetic number, because the mean of its divisors is an integer number (13953813684813).

Almost surely, 2^{68218644681286} is an apocalyptic number.

68218644681286 is a deficient number, since it is larger than the sum of its proper divisors (43411864797218).

68218644681286 is a wasteful number, since it uses less digits than its factorization.

68218644681286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3100847485526.

The product of its digits is 339738624, while the sum is 70.

The spelling of 68218644681286 in words is "sixty-eight trillion, two hundred eighteen billion, six hundred forty-four million, six hundred eighty-one thousand, two hundred eighty-six".