2068861205 has 4 divisors (see below), whose sum is σ = 2482633452. Its totient is φ = 1655088960.

The previous prime is 2068861187. The next prime is 2068861211. The reversal of 2068861205 is 5021688602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 683979409 + 1384881796 = 26153^2 + 37214^2 .

It is not a de Polignac number, because 2068861205 - 2⁶ = 2068861141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206886116 + ... + 206886125.

It is an arithmetic number, because the mean of its divisors is an integer number (620658363).

Almost surely, 2^2068861205 is an apocalyptic number.

It is an amenable number.

2068861205 is a deficient number, since it is larger than the sum of its proper divisors (413772247).

2068861205 is an equidigital number, since it uses as much as digits as its factorization.

2068861205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413772246.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 2068861205 is about 45484.7359561425. The cubic root of 2068861205 is about 1274.2181452811.

The spelling of 2068861205 in words is "two billion, sixty-eight million, eight hundred sixty-one thousand, two hundred five".