2687768201 has 4 divisors (see below), whose sum is σ = 2804627712. Its totient is φ = 2570908692.

The previous prime is 2687768141. The next prime is 2687768219. The reversal of 2687768201 is 1028677862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2687768201 - 2²² = 2683573897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2687968201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58429721 + ... + 58429766.

It is an arithmetic number, because the mean of its divisors is an integer number (701156928).

Almost surely, 2^2687768201 is an apocalyptic number.

It is an amenable number.

2687768201 is a deficient number, since it is larger than the sum of its proper divisors (116859511).

2687768201 is a wasteful number, since it uses less digits than its factorization.

2687768201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116859510.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 2687768201 is about 51843.6900789286. The cubic root of 2687768201 is about 1390.3706895686.

The spelling of 2687768201 in words is "two billion, six hundred eighty-seven million, seven hundred sixty-eight thousand, two hundred one".