2385638648 has 16 divisors (see below), whose sum is σ = 4473621960. Its totient is φ = 1192672800.

The previous prime is 2385638641. The next prime is 2385638701. The reversal of 2385638648 is 8468365832.

It is a Cunningham number, because it is equal to 48843²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 2385638648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2385638641) 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, 85478 + ... + 109898.

Almost surely, 2^2385638648 is an apocalyptic number.

It is an amenable number.

2385638648 is a deficient number, since it is larger than the sum of its proper divisors (2087983312).

2385638648 is a wasteful number, since it uses less digits than its factorization.

2385638648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36638 (or 36634 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 53.

The square root of 2385638648 is about 48842.9999897631. Note that the first 4 decimals coincide. The cubic root of 2385638648 is about 1336.1900105642.

The spelling of 2385638648 in words is "two billion, three hundred eighty-five million, six hundred thirty-eight thousand, six hundred forty-eight".