68314810518 has 12 divisors (see below), whose sum is σ = 148015422828. Its totient is φ = 22771603500.

The previous prime is 68314810513. The next prime is 68314810561. The reversal of 68314810518 is 81501841386.

68314810518 is a `hidden beast` number, since 6 + 83 + 1 + 48 + 10 + 518 = 666.

It is a super-2 number, since 2×68314810518² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68314810513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1897633608 + ... + 1897633643.

It is an arithmetic number, because the mean of its divisors is an integer number (12334618569).

Almost surely, 2^68314810518 is an apocalyptic number.

68314810518 is an abundant number, since it is smaller than the sum of its proper divisors (79700612310).

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

68314810518 is a wasteful number, since it uses less digits than its factorization.

68314810518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3795267259 (or 3795267256 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The spelling of 68314810518 in words is "sixty-eight billion, three hundred fourteen million, eight hundred ten thousand, five hundred eighteen".