2708780489 has 2 divisors, whose sum is σ = 2708780490. Its totient is φ = 2708780488.

The previous prime is 2708780461. The next prime is 2708780531. The reversal of 2708780489 is 9840878072.

It is a happy number.

2708780489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2603040400 + 105740089 = 51020^2 + 10283^2 .

It is a cyclic number.

It is not a de Polignac number, because 2708780489 - 2¹² = 2708776393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2708780489.

It is not a weakly prime, because it can be changed into another prime (2708780419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1354390244 + 1354390245.

It is an arithmetic number, because the mean of its divisors is an integer number (1354390245).

Almost surely, 2^2708780489 is an apocalyptic number.

It is an amenable number.

2708780489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2708780489 is an equidigital number, since it uses as much as digits as its factorization.

2708780489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1806336, while the sum is 53.

The square root of 2708780489 is about 52045.9459420232. The cubic root of 2708780489 is about 1393.9844767512.

The spelling of 2708780489 in words is "two billion, seven hundred eight million, seven hundred eighty thousand, four hundred eighty-nine".