2986671881 has 4 divisors (see below), whose sum is σ = 2993067792. Its totient is φ = 2980275972.

The previous prime is 2986671869. The next prime is 2986671899. The reversal of 2986671881 is 1881766892.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2986671881 - 2²² = 2982477577 is a prime.

It is a super-2 number, since 2×2986671881² = 17840417849512156322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2986671811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3197255 + ... + 3198188.

It is an arithmetic number, because the mean of its divisors is an integer number (748266948).

Almost surely, 2^2986671881 is an apocalyptic number.

It is an amenable number.

2986671881 is a deficient number, since it is larger than the sum of its proper divisors (6395911).

2986671881 is an equidigital number, since it uses as much as digits as its factorization.

2986671881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6395910.

The product of its digits is 2322432, while the sum is 56.

The square root of 2986671881 is about 54650.4517913622. The cubic root of 2986671881 is about 1440.1105690883.

The spelling of 2986671881 in words is "two billion, nine hundred eighty-six million, six hundred seventy-one thousand, eight hundred eighty-one".