2688161287 has 32 divisors (see below), whose sum is σ = 3313428480. Its totient is φ = 2129483520.

The previous prime is 2688161279. The next prime is 2688161303. The reversal of 2688161287 is 7821618862.

It is not a de Polignac number, because 2688161287 - 2³ = 2688161279 is a prime.

It is a super-2 number, since 2×2688161287² = 14452422209850992738, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2688161287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2688161207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2856237 + ... + 2857177.

It is an arithmetic number, because the mean of its divisors is an integer number (103544640).

Almost surely, 2^2688161287 is an apocalyptic number.

2688161287 is a deficient number, since it is larger than the sum of its proper divisors (625267193).

2688161287 is a wasteful number, since it uses less digits than its factorization.

2688161287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471.

The product of its digits is 516096, while the sum is 49.

The square root of 2688161287 is about 51847.4810092062. The cubic root of 2688161287 is about 1390.4384668185.

The spelling of 2688161287 in words is "two billion, six hundred eighty-eight million, one hundred sixty-one thousand, two hundred eighty-seven".