2277120889 has 2 divisors, whose sum is σ = 2277120890. Its totient is φ = 2277120888.

The previous prime is 2277120869. The next prime is 2277120971. The reversal of 2277120889 is 9880217722.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1796064400 + 481056489 = 42380^2 + 21933^2 .

It is a cyclic number.

It is not a de Polignac number, because 2277120889 - 2²⁹ = 1740249977 is a prime.

It is not a weakly prime, because it can be changed into another prime (2277120869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1138560444 + 1138560445.

It is an arithmetic number, because the mean of its divisors is an integer number (1138560445).

Almost surely, 2^2277120889 is an apocalyptic number.

It is an amenable number.

2277120889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2277120889 is an equidigital number, since it uses as much as digits as its factorization.

2277120889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 46.

The square root of 2277120889 is about 47719.1878493337. The cubic root of 2277120889 is about 1315.6146343870.

It can be divided in two parts, 22771 and 20889, that added together give a triangular number (43660 = T₂₉₅).

The spelling of 2277120889 in words is "two billion, two hundred seventy-seven million, one hundred twenty thousand, eight hundred eighty-nine".