2563438479 has 24 divisors (see below), whose sum is σ = 4015334448. Its totient is φ = 1450310400.

The previous prime is 2563438429. The next prime is 2563438489. The reversal of 2563438479 is 9748343652.

It is not a de Polignac number, because 2563438479 - 2⁸ = 2563438223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563438429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71482 + ... + 101175.

It is an arithmetic number, because the mean of its divisors is an integer number (167305602).

Almost surely, 2^2563438479 is an apocalyptic number.

2563438479 is a deficient number, since it is larger than the sum of its proper divisors (1451895969).

2563438479 is a wasteful number, since it uses less digits than its factorization.

2563438479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172775 (or 172768 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 51.

The square root of 2563438479 is about 50630.4106145704. The cubic root of 2563438479 is about 1368.5929537879.

The spelling of 2563438479 in words is "two billion, five hundred sixty-three million, four hundred thirty-eight thousand, four hundred seventy-nine".