2782685449 has 2 divisors, whose sum is σ = 2782685450. Its totient is φ = 2782685448.

The previous prime is 2782685419. The next prime is 2782685453. The reversal of 2782685449 is 9445862872.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2669582224 + 113103225 = 51668^2 + 10635^2 .

It is a cyclic number.

It is not a de Polignac number, because 2782685449 - 2⁵ = 2782685417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2782685449.

It is not a weakly prime, because it can be changed into another prime (2782685419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1391342724 + 1391342725.

It is an arithmetic number, because the mean of its divisors is an integer number (1391342725).

Almost surely, 2^2782685449 is an apocalyptic number.

It is an amenable number.

2782685449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2782685449 is an equidigital number, since it uses as much as digits as its factorization.

2782685449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7741440, while the sum is 55.

The square root of 2782685449 is about 52751.1653804918. The cubic root of 2782685449 is about 1406.5484798155.

The spelling of 2782685449 in words is "two billion, seven hundred eighty-two million, six hundred eighty-five thousand, four hundred forty-nine".