6887550557886 has 64 divisors (see below), whose sum is σ = 14531553646848. Its totient is φ = 2173947925248.

The previous prime is 6887550557857. The next prime is 6887550557903.

6887550557886 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1554975 + ... + 4024058.

It is an arithmetic number, because the mean of its divisors is an integer number (227055525732).

Almost surely, 2^{6887550557886} is an apocalyptic number.

6887550557886 is an abundant number, since it is smaller than the sum of its proper divisors (7644003088962).

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

6887550557886 is a wasteful number, since it uses less digits than its factorization.

6887550557886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5579225.

The product of its (nonzero) digits is 4515840000, while the sum is 78.

The spelling of 6887550557886 in words is "six trillion, eight hundred eighty-seven billion, five hundred fifty million, five hundred fifty-seven thousand, eight hundred eighty-six".