2563278319 has 8 divisors (see below), whose sum is σ = 2966543360. Its totient is φ = 2169283896.

The previous prime is 2563278317. The next prime is 2563278329. The reversal of 2563278319 is 9138723652.

2563278319 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2563278319 - 2¹ = 2563278317 is a prime.

It is a super-2 number, since 2×2563278319² = 13140791481310931522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563278317) 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, 2317059 + ... + 2318164.

It is an arithmetic number, because the mean of its divisors is an integer number (370817920).

Almost surely, 2^2563278319 is an apocalyptic number.

2563278319 is a deficient number, since it is larger than the sum of its proper divisors (403265041).

2563278319 is an equidigital number, since it uses as much as digits as its factorization.

2563278319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4635309.

The product of its digits is 544320, while the sum is 46.

The square root of 2563278319 is about 50628.8289317460. The cubic root of 2563278319 is about 1368.5644506122.

The spelling of 2563278319 in words is "two billion, five hundred sixty-three million, two hundred seventy-eight thousand, three hundred nineteen".