2278653593 has 2 divisors, whose sum is σ = 2278653594. Its totient is φ = 2278653592.

The previous prime is 2278653563. The next prime is 2278653613. The reversal of 2278653593 is 3953568722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1350415504 + 928238089 = 36748^2 + 30467^2 .

It is a cyclic number.

It is not a de Polignac number, because 2278653593 - 2⁶ = 2278653529 is a prime.

It is not a weakly prime, because it can be changed into another prime (2278653563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1139326796 + 1139326797.

It is an arithmetic number, because the mean of its divisors is an integer number (1139326797).

Almost surely, 2^2278653593 is an apocalyptic number.

It is an amenable number.

2278653593 is a deficient number, since it is larger than the sum of its proper divisors (1).

2278653593 is an equidigital number, since it uses as much as digits as its factorization.

2278653593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2721600, while the sum is 50.

The square root of 2278653593 is about 47735.2447673624. The cubic root of 2278653593 is about 1315.9097432349.

The spelling of 2278653593 in words is "two billion, two hundred seventy-eight million, six hundred fifty-three thousand, five hundred ninety-three".