2136804399 has 6 divisors (see below), whose sum is σ = 3086495256. Its totient is φ = 1424536260.

The previous prime is 2136804359. The next prime is 2136804407. The reversal of 2136804399 is 9934086312.

It is a happy number.

2136804399 is a `hidden beast` number, since 2 + 136 + 80 + 439 + 9 = 666.

It is not a de Polignac number, because 2136804399 - 2¹⁵ = 2136771631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136804359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118711347 + ... + 118711364.

It is an arithmetic number, because the mean of its divisors is an integer number (514415876).

Almost surely, 2^2136804399 is an apocalyptic number.

2136804399 is a deficient number, since it is larger than the sum of its proper divisors (949690857).

2136804399 is a wasteful number, since it uses less digits than its factorization.

2136804399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237422717 (or 237422714 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 2136804399 is about 46225.5816512891. The cubic root of 2136804399 is about 1288.0169838736.

The spelling of 2136804399 in words is "two billion, one hundred thirty-six million, eight hundred four thousand, three hundred ninety-nine".