2061684135 has 48 divisors (see below), whose sum is σ = 4145097216. Its totient is φ = 928407744.

The previous prime is 2061684103. The next prime is 2061684137. The reversal of 2061684135 is 5314861602.

It is a happy number.

2061684135 is a `hidden beast` number, since 2 + 0 + 616 + 8 + 4 + 1 + 35 = 666.

It is not a de Polignac number, because 2061684135 - 2⁵ = 2061684103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2061684135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061684137) 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 47 ways as a sum of consecutive naturals, for example, 27739 + ... + 69948.

It is an arithmetic number, because the mean of its divisors is an integer number (86356192).

Almost surely, 2^2061684135 is an apocalyptic number.

2061684135 is an abundant number, since it is smaller than the sum of its proper divisors (2083413081).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2061684135 is a wasteful number, since it uses less digits than its factorization.

2061684135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97772 (or 97769 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2061684135 is about 45405.7720449724. The cubic root of 2061684135 is about 1272.7429781125.

The spelling of 2061684135 in words is "two billion, sixty-one million, six hundred eighty-four thousand, one hundred thirty-five".