2627638869 has 16 divisors (see below), whose sum is σ = 3564145472. Its totient is φ = 1721616768.

The previous prime is 2627638861. The next prime is 2627638901. The reversal of 2627638869 is 9688367262.

It is a happy number.

It is not a de Polignac number, because 2627638869 - 2³ = 2627638861 is a prime.

It is a super-2 number, since 2×2627638869² = 13808972051759198322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2627638861) 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 15 ways as a sum of consecutive naturals, for example, 40779 + ... + 83175.

It is an arithmetic number, because the mean of its divisors is an integer number (222759092).

Almost surely, 2^2627638869 is an apocalyptic number.

It is an amenable number.

2627638869 is a deficient number, since it is larger than the sum of its proper divisors (936506603).

2627638869 is a wasteful number, since it uses less digits than its factorization.

2627638869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42756.

The product of its digits is 10450944, while the sum is 57.

The square root of 2627638869 is about 51260.5000853484. The cubic root of 2627638869 is about 1379.9241835054.

The spelling of 2627638869 in words is "two billion, six hundred twenty-seven million, six hundred thirty-eight thousand, eight hundred sixty-nine".