2688006987 has 24 divisors (see below), whose sum is σ = 4057118208. Its totient is φ = 1711710000.

The previous prime is 2688006983. The next prime is 2688007039. The reversal of 2688006987 is 7896008862.

It is not a de Polignac number, because 2688006987 - 2² = 2688006983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2688006983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146812 + ... + 164102.

It is an arithmetic number, because the mean of its divisors is an integer number (169046592).

Almost surely, 2^2688006987 is an apocalyptic number.

2688006987 is a deficient number, since it is larger than the sum of its proper divisors (1369111221).

2688006987 is a wasteful number, since it uses less digits than its factorization.

2688006987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18071 (or 18068 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The square root of 2688006987 is about 51845.9929695632. The cubic root of 2688006987 is about 1390.4118626657.

The spelling of 2688006987 in words is "two billion, six hundred eighty-eight million, six thousand, nine hundred eighty-seven".