2687845068 has 18 divisors (see below), whose sum is σ = 6794275124. Its totient is φ = 895948344.

The previous prime is 2687845063. The next prime is 2687845073. The reversal of 2687845068 is 8605487862.

2687845068 is a `hidden beast` number, since 2 + 68 + 78 + 4 + 506 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (2687845063) and next prime (2687845073).

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×2687845068² = 14449022219143849248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2687845063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37331146 + ... + 37331217.

Almost surely, 2^2687845068 is an apocalyptic number.

It is an amenable number.

2687845068 is an abundant number, since it is smaller than the sum of its proper divisors (4106430056).

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

2687845068 is a wasteful number, since it uses less digits than its factorization.

2687845068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74662373 (or 74662368 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The square root of 2687845068 is about 51844.4314078185. The cubic root of 2687845068 is about 1390.3839437627.

The spelling of 2687845068 in words is "two billion, six hundred eighty-seven million, eight hundred forty-five thousand, sixty-eight".