2136404673 has 16 divisors (see below), whose sum is σ = 3408509440. Its totient is φ = 1314710352.

The previous prime is 2136404659. The next prime is 2136404681. The reversal of 2136404673 is 3764046312.

It is a happy number.

2136404673 is a `hidden beast` number, since 2 + 1 + 3 + 640 + 4 + 6 + 7 + 3 = 666.

It is not a de Polignac number, because 2136404673 - 2⁶ = 2136404609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2136404623) 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 15 ways as a sum of consecutive naturals, for example, 3042961 + ... + 3043662.

It is an arithmetic number, because the mean of its divisors is an integer number (213031840).

Almost surely, 2^2136404673 is an apocalyptic number.

It is an amenable number.

2136404673 is a deficient number, since it is larger than the sum of its proper divisors (1272104767).

2136404673 is a wasteful number, since it uses less digits than its factorization.

2136404673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6086645 (or 6086639 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 2136404673 is about 46221.2578041749. The cubic root of 2136404673 is about 1287.9366636245.

The spelling of 2136404673 in words is "two billion, one hundred thirty-six million, four hundred four thousand, six hundred seventy-three".