2563822863 has 24 divisors (see below), whose sum is σ = 4301731616. Its totient is φ = 1441022400.

The previous prime is 2563822843. The next prime is 2563822873. The reversal of 2563822863 is 3682283652.

2563822863 is a `hidden beast` number, since 2 + 5 + 638 + 2 + 2 + 8 + 6 + 3 = 666.

It is not a de Polignac number, because 2563822863 - 2⁵ = 2563822831 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563822823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 329728 + ... + 337413.

Almost surely, 2^2563822863 is an apocalyptic number.

2563822863 is a deficient number, since it is larger than the sum of its proper divisors (1737908753).

2563822863 is a wasteful number, since it uses less digits than its factorization.

2563822863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667215 (or 667212 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 2563822863 is about 50634.2064517654. The cubic root of 2563822863 is about 1368.6613565662.

The spelling of 2563822863 in words is "two billion, five hundred sixty-three million, eight hundred twenty-two thousand, eight hundred sixty-three".