2259367778 has 16 divisors (see below), whose sum is σ = 3515121144. Its totient is φ = 1088265600.

The previous prime is 2259367777. The next prime is 2259367783. The reversal of 2259367778 is 8777639522.

2259367778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2183973289 + 75394489 = 46733^2 + 8683^2 .

It is not an unprimeable number, because it can be changed into a prime (2259367777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143675 + ... + 158622.

Almost surely, 2^2259367778 is an apocalyptic number.

2259367778 is a deficient number, since it is larger than the sum of its proper divisors (1255753366).

2259367778 is a wasteful number, since it uses less digits than its factorization.

2259367778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302437.

The product of its digits is 8890560, while the sum is 56.

The square root of 2259367778 is about 47532.8073860571. The cubic root of 2259367778 is about 1312.1867363996.

The spelling of 2259367778 in words is "two billion, two hundred fifty-nine million, three hundred sixty-seven thousand, seven hundred seventy-eight".