2168341777 has 12 divisors (see below), whose sum is σ = 2569951476. Its totient is φ = 1823508960.

The previous prime is 2168341751. The next prime is 2168341793. The reversal of 2168341777 is 7771438612.

It can be written as a sum of positive squares in 2 ways, for example, as 1390991616 + 777350161 = 37296^2 + 27881^2 .

It is not a de Polignac number, because 2168341777 - 2⁷ = 2168341649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2168341727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 414874 + ... + 420067.

It is an arithmetic number, because the mean of its divisors is an integer number (214162623).

Almost surely, 2^2168341777 is an apocalyptic number.

It is an amenable number.

2168341777 is a deficient number, since it is larger than the sum of its proper divisors (401609699).

2168341777 is an equidigital number, since it uses as much as digits as its factorization.

2168341777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835008 (or 835001 counting only the distinct ones).

The product of its digits is 395136, while the sum is 46.

The square root of 2168341777 is about 46565.4569074545. The cubic root of 2168341777 is about 1294.3227332725.

The spelling of 2168341777 in words is "two billion, one hundred sixty-eight million, three hundred forty-one thousand, seven hundred seventy-seven".