2686525889 has 2 divisors, whose sum is σ = 2686525890. Its totient is φ = 2686525888.

The previous prime is 2686525873. The next prime is 2686525927. The reversal of 2686525889 is 9885256862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2557021489 + 129504400 = 50567^2 + 11380^2 .

It is a cyclic number.

It is not a de Polignac number, because 2686525889 - 2⁴ = 2686525873 is a prime.

It is not a weakly prime, because it can be changed into another prime (2686525789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1343262944 + 1343262945.

It is an arithmetic number, because the mean of its divisors is an integer number (1343262945).

Almost surely, 2^2686525889 is an apocalyptic number.

It is an amenable number.

2686525889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2686525889 is an equidigital number, since it uses as much as digits as its factorization.

2686525889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16588800, while the sum is 59.

The square root of 2686525889 is about 51831.7073710678. The cubic root of 2686525889 is about 1390.1564423751.

The spelling of 2686525889 in words is "two billion, six hundred eighty-six million, five hundred twenty-five thousand, eight hundred eighty-nine".