2687815412 has 12 divisors (see below), whose sum is σ = 4728304896. Its totient is φ = 1336871160.

The previous prime is 2687815399. The next prime is 2687815453. The reversal of 2687815412 is 2145187862.

It is a congruent 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, 1758278 + ... + 1759805.

It is an arithmetic number, because the mean of its divisors is an integer number (394025408).

Almost surely, 2^2687815412 is an apocalyptic number.

It is an amenable number.

2687815412 is a deficient number, since it is larger than the sum of its proper divisors (2040489484).

2687815412 is a wasteful number, since it uses less digits than its factorization.

2687815412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3518278 (or 3518276 counting only the distinct ones).

The product of its digits is 215040, while the sum is 44.

The square root of 2687815412 is about 51844.1453975278. The cubic root of 2687815412 is about 1390.3788302019.

The spelling of 2687815412 in words is "two billion, six hundred eighty-seven million, eight hundred fifteen thousand, four hundred twelve".