2867451849 has 6 divisors (see below), whose sum is σ = 4141874906. Its totient is φ = 1911634560.

The previous prime is 2867451841. The next prime is 2867451871. The reversal of 2867451849 is 9481547682.

It is a happy number.

2867451849 is a `hidden beast` number, since 2 + 86 + 7 + 4 + 518 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1620867600 + 1246584249 = 40260^2 + 35307^2 .

It is not a de Polignac number, because 2867451849 - 2³ = 2867451841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2867451795 and 2867451804.

It is not an unprimeable number, because it can be changed into a prime (2867451841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 159302872 + ... + 159302889.

Almost surely, 2^2867451849 is an apocalyptic number.

It is an amenable number.

2867451849 is a deficient number, since it is larger than the sum of its proper divisors (1274423057).

2867451849 is a wasteful number, since it uses less digits than its factorization.

2867451849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318605767 (or 318605764 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 2867451849 is about 53548.5933428694. The cubic root of 2867451849 is about 1420.6879971311.

The spelling of 2867451849 in words is "two billion, eight hundred sixty-seven million, four hundred fifty-one thousand, eight hundred forty-nine".