2136584385 has 80 divisors (see below), whose sum is σ = 4143009024. Its totient is φ = 1047178368.

The previous prime is 2136584383. The next prime is 2136584399. The reversal of 2136584385 is 5834856312.

2136584385 is a `hidden beast` number, since 2 + 1 + 36 + 584 + 38 + 5 = 666.

It is not a de Polignac number, because 2136584385 - 2¹ = 2136584383 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2136584385.

It is not an unprimeable number, because it can be changed into a prime (2136584383) 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 79 ways as a sum of consecutive naturals, for example, 1383924 + ... + 1385466.

Almost surely, 2^2136584385 is an apocalyptic number.

It is an amenable number.

2136584385 is a deficient number, since it is larger than the sum of its proper divisors (2006424639).

2136584385 is a wasteful number, since it uses less digits than its factorization.

2136584385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836 (or 1827 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 2136584385 is about 46223.2018038560. The cubic root of 2136584385 is about 1287.9727758816.

The spelling of 2136584385 in words is "two billion, one hundred thirty-six million, five hundred eighty-four thousand, three hundred eighty-five".