2081161747 has 8 divisors (see below), whose sum is σ = 2381869152. Its totient is φ = 1781304000.

The previous prime is 2081161729. The next prime is 2081161807. The reversal of 2081161747 is 7471611802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2081161747 - 2⁷ = 2081161619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2081167747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207154 + ... + 216967.

It is an arithmetic number, because the mean of its divisors is an integer number (297733644).

Almost surely, 2^2081161747 is an apocalyptic number.

2081161747 is a deficient number, since it is larger than the sum of its proper divisors (300707405).

2081161747 is an equidigital number, since it uses as much as digits as its factorization.

2081161747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424829.

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 2081161747 is about 45619.7517200609. The cubic root of 2081161747 is about 1276.7384711557.

The spelling of 2081161747 in words is "two billion, eighty-one million, one hundred sixty-one thousand, seven hundred forty-seven".