2625807869 has 2 divisors, whose sum is σ = 2625807870. Its totient is φ = 2625807868.

The previous prime is 2625807853. The next prime is 2625807917. The reversal of 2625807869 is 9687085262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2258625625 + 367182244 = 47525^2 + 19162^2 .

It is a cyclic number.

It is not a de Polignac number, because 2625807869 - 2⁴ = 2625807853 is a prime.

It is a super-2 number, since 2×2625807869² = 13789733929804642322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2625807869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2625807269) 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 as a sum of consecutive naturals, namely, 1312903934 + 1312903935.

It is an arithmetic number, because the mean of its divisors is an integer number (1312903935).

Almost surely, 2^2625807869 is an apocalyptic number.

It is an amenable number.

2625807869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2625807869 is an equidigital number, since it uses as much as digits as its factorization.

2625807869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The square root of 2625807869 is about 51242.6372174579. The cubic root of 2625807869 is about 1379.6035879178.

The spelling of 2625807869 in words is "two billion, six hundred twenty-five million, eight hundred seven thousand, eight hundred sixty-nine".