2538889168 has 20 divisors (see below), whose sum is σ = 4925831428. Its totient is φ = 1267706880.

The previous prime is 2538889153. The next prime is 2538889169. The reversal of 2538889168 is 8619888352.

It can be written as a sum of positive squares in 2 ways, for example, as 2509208464 + 29680704 = 50092^2 + 5448^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2538889169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96513 + ... + 119968.

Almost surely, 2^2538889168 is an apocalyptic number.

It is an amenable number.

2538889168 is a deficient number, since it is larger than the sum of its proper divisors (2386942260).

2538889168 is a wasteful number, since it uses less digits than its factorization.

2538889168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217222 (or 217216 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 58.

The square root of 2538889168 is about 50387.3909624223. The cubic root of 2538889168 is about 1364.2100592945.

The spelling of 2538889168 in words is "two billion, five hundred thirty-eight million, eight hundred eighty-nine thousand, one hundred sixty-eight".