2689528885 has 4 divisors (see below), whose sum is σ = 3227434668. Its totient is φ = 2151623104.

The previous prime is 2689528883. The next prime is 2689528913. The reversal of 2689528885 is 5888259862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 710435716 + 1979093169 = 26654^2 + 44487^2 .

It is a cyclic number.

It is not a de Polignac number, because 2689528885 - 2¹ = 2689528883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2689528883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268952884 + ... + 268952893.

It is an arithmetic number, because the mean of its divisors is an integer number (806858667).

Almost surely, 2^2689528885 is an apocalyptic number.

It is an amenable number.

2689528885 is a deficient number, since it is larger than the sum of its proper divisors (537905783).

2689528885 is an equidigital number, since it uses as much as digits as its factorization.

2689528885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537905782.

The product of its digits is 22118400, while the sum is 61.

The square root of 2689528885 is about 51860.6679960835. The cubic root of 2689528885 is about 1390.6742213340.

The spelling of 2689528885 in words is "two billion, six hundred eighty-nine million, five hundred twenty-eight thousand, eight hundred eighty-five".