2183938655 has 8 divisors (see below), whose sum is σ = 2646674784. Its totient is φ = 1729852000.

The previous prime is 2183938649. The next prime is 2183938663. The reversal of 2183938655 is 5568393812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2183938655 - 2¹² = 2183934559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2161811 + ... + 2162820.

It is an arithmetic number, because the mean of its divisors is an integer number (330834348).

Almost surely, 2^2183938655 is an apocalyptic number.

2183938655 is a deficient number, since it is larger than the sum of its proper divisors (462736129).

2183938655 is a wasteful number, since it uses less digits than its factorization.

2183938655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4324737.

The product of its digits is 1555200, while the sum is 50.

The square root of 2183938655 is about 46732.6294466725. The cubic root of 2183938655 is about 1297.4186756572.

The spelling of 2183938655 in words is "two billion, one hundred eighty-three million, nine hundred thirty-eight thousand, six hundred fifty-five".