6868631886 has 32 divisors (see below), whose sum is σ = 13888498848. Its totient is φ = 2264371200.

The previous prime is 6868631881. The next prime is 6868631893. The reversal of 6868631886 is 6881368686.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6868631881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1086936 + ... + 1093236.

It is an arithmetic number, because the mean of its divisors is an integer number (434015589).

Almost surely, 2^6868631886 is an apocalyptic number.

6868631886 is an abundant number, since it is smaller than the sum of its proper divisors (7019866962).

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

6868631886 is a wasteful number, since it uses less digits than its factorization.

6868631886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8276.

The product of its digits is 15925248, while the sum is 60.

The square root of 6868631886 is about 82877.2096899986. The cubic root of 6868631886 is about 1900.8889548408. Note that the first 3 decimals are identical.

The spelling of 6868631886 in words is "six billion, eight hundred sixty-eight million, six hundred thirty-one thousand, eight hundred eighty-six".