68816061886 has 64 divisors (see below), whose sum is σ = 130061998080. Its totient is φ = 26837965440.

The previous prime is 68816061883. The next prime is 68816061901.

68816061886 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 68816061886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68816061883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168531 + ... + 407473.

It is an arithmetic number, because the mean of its divisors is an integer number (2032218720).

Almost surely, 2^68816061886 is an apocalyptic number.

68816061886 is a deficient number, since it is larger than the sum of its proper divisors (61245936194).

68816061886 is a wasteful number, since it uses less digits than its factorization.

68816061886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239041.

The product of its (nonzero) digits is 5308416, while the sum is 58.

The spelling of 68816061886 in words is "sixty-eight billion, eight hundred sixteen million, sixty-one thousand, eight hundred eighty-six".