68541691843814 has 16 divisors (see below), whose sum is σ = 117515063167488. Its totient is φ = 29371255788552.

The previous prime is 68541691843741. The next prime is 68541691843831. The reversal of 68541691843814 is 41834819614586.

It is a super-2 number, since 2×68541691843814² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312803372 + ... + 313022415.

It is an arithmetic number, because the mean of its divisors is an integer number (7344691447968).

Almost surely, 2^{68541691843814} is an apocalyptic number.

68541691843814 is a deficient number, since it is larger than the sum of its proper divisors (48973371323674).

68541691843814 is a wasteful number, since it uses less digits than its factorization.

68541691843814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625833619.

The product of its digits is 159252480, while the sum is 68.

The spelling of 68541691843814 in words is "sixty-eight trillion, five hundred forty-one billion, six hundred ninety-one million, eight hundred forty-three thousand, eight hundred fourteen".