68761786818495 has 16 divisors (see below), whose sum is σ = 110019289104000. Its totient is φ = 36672809571744.

The previous prime is 68761786818467. The next prime is 68761786818497. The reversal of 68761786818495 is 59481868716786.

It is not a de Polignac number, because 68761786818495 - 2⁵ = 68761786818463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68761786818497) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4940149 + ... + 12725118.

It is an arithmetic number, because the mean of its divisors is an integer number (6876205569000).

Almost surely, 2^{68761786818495} is an apocalyptic number.

68761786818495 is a deficient number, since it is larger than the sum of its proper divisors (41257502285505).

68761786818495 is a wasteful number, since it uses less digits than its factorization.

68761786818495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17924774.

The product of its digits is 7803371520, while the sum is 84.

The spelling of 68761786818495 in words is "sixty-eight trillion, seven hundred sixty-one billion, seven hundred eighty-six million, eight hundred eighteen thousand, four hundred ninety-five".