2687274449 has 2 divisors, whose sum is σ = 2687274450. Its totient is φ = 2687274448.

The previous prime is 2687274433. The next prime is 2687274461. The reversal of 2687274449 is 9444727862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2048196049 + 639078400 = 45257^2 + 25280^2 .

It is a cyclic number.

It is not a de Polignac number, because 2687274449 - 2⁴ = 2687274433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2687274449.

It is not a weakly prime, because it can be changed into another prime (2687274479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1343637224 + 1343637225.

It is an arithmetic number, because the mean of its divisors is an integer number (1343637225).

Almost surely, 2^2687274449 is an apocalyptic number.

It is an amenable number.

2687274449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2687274449 is an equidigital number, since it uses as much as digits as its factorization.

2687274449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5419008, while the sum is 53.

The square root of 2687274449 is about 51838.9279306584. The cubic root of 2687274449 is about 1390.2855457740.

The spelling of 2687274449 in words is "two billion, six hundred eighty-seven million, two hundred seventy-four thousand, four hundred forty-nine".