68840855804886 has 64 divisors (see below), whose sum is σ = 150456268800000. Its totient is φ = 20825030189600.

The previous prime is 68840855804857. The next prime is 68840855804893.

68840855804886 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1423160281 + ... + 1423208651.

It is an arithmetic number, because the mean of its divisors is an integer number (2350879200000).

Almost surely, 2^{68840855804886} is an apocalyptic number.

68840855804886 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

68840855804886 is an abundant number, since it is smaller than the sum of its proper divisors (81615412995114).

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

68840855804886 is a wasteful number, since it uses less digits than its factorization.

68840855804886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84985.

The product of its (nonzero) digits is 3774873600, while the sum is 78.

The spelling of 68840855804886 in words is "sixty-eight trillion, eight hundred forty billion, eight hundred fifty-five million, eight hundred four thousand, eight hundred eighty-six".