2688735425 has 12 divisors (see below), whose sum is σ = 3424142076. Its totient is φ = 2092852800.

The previous prime is 2688735409. The next prime is 2688735523. The reversal of 2688735425 is 5245378862.

It can be written as a sum of positive squares in 6 ways, for example, as 184633744 + 2504101681 = 13588^2 + 50041^2 .

It is not a de Polignac number, because 2688735425 - 2⁴ = 2688735409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1452446 + ... + 1454295.

It is an arithmetic number, because the mean of its divisors is an integer number (285345173).

Almost surely, 2^2688735425 is an apocalyptic number.

2688735425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2688735425 is a deficient number, since it is larger than the sum of its proper divisors (735406651).

2688735425 is a wasteful number, since it uses less digits than its factorization.

2688735425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2906788 (or 2906783 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 50.

The square root of 2688735425 is about 51853.0175110379. The cubic root of 2688735425 is about 1390.5374498095.

The spelling of 2688735425 in words is "two billion, six hundred eighty-eight million, seven hundred thirty-five thousand, four hundred twenty-five".