2687071866 has 8 divisors (see below), whose sum is σ = 5374143744. Its totient is φ = 895690620.

The previous prime is 2687071843. The next prime is 2687071873. The reversal of 2687071866 is 6681707862.

It is a sphenic number, since it is the product of 3 distinct primes.

2687071866 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223922650 + ... + 223922661.

It is an arithmetic number, because the mean of its divisors is an integer number (671767968).

Almost surely, 2^2687071866 is an apocalyptic number.

2687071866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2687071866 is a wasteful number, since it uses less digits than its factorization.

2687071866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447845316.

The product of its (nonzero) digits is 1354752, while the sum is 51.

The square root of 2687071866 is about 51836.9739278828. The cubic root of 2687071866 is about 1390.2506088519.

The spelling of 2687071866 in words is "two billion, six hundred eighty-seven million, seventy-one thousand, eight hundred sixty-six".