2086178492611 has 16 divisors (see below), whose sum is σ = 2150563633920. Its totient is φ = 2022228361440.

The previous prime is 2086178492569. The next prime is 2086178492639. The reversal of 2086178492611 is 1162948716802.

It is a cyclic number.

It is not a de Polignac number, because 2086178492611 - 2⁷ = 2086178492483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2086178490611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10807380 + ... + 10998718.

It is an arithmetic number, because the mean of its divisors is an integer number (134410227120).

Almost surely, 2^{2086178492611} is an apocalyptic number.

2086178492611 is a deficient number, since it is larger than the sum of its proper divisors (64385141309).

2086178492611 is a wasteful number, since it uses less digits than its factorization.

2086178492611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192474.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 2086178492611 in words is "two trillion, eighty-six billion, one hundred seventy-eight million, four hundred ninety-two thousand, six hundred eleven".