3806868245 has 18 divisors (see below), whose sum is σ = 4689347814. Its totient is φ = 2966799360.

The previous prime is 3806868239. The next prime is 3806868311. The reversal of 3806868245 is 5428686083.

It can be written as a sum of positive squares in 9 ways, for example, as 3317529604 + 489338641 = 57598^2 + 22121^2 .

It is not a de Polignac number, because 3806868245 - 2⁶ = 3806868181 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3806868193 and 3806868202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5656229 + ... + 5656901.

It is an arithmetic number, because the mean of its divisors is an integer number (260519323).

Almost surely, 2^3806868245 is an apocalyptic number.

It is an amenable number.

3806868245 is a deficient number, since it is larger than the sum of its proper divisors (882479569).

3806868245 is an frugal number, since it uses more digits than its factorization.

3806868245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 50.

The square root of 3806868245 is about 61699.8237031517. The cubic root of 3806868245 is about 1561.4303456217.

The spelling of 3806868245 in words is "three billion, eight hundred six million, eight hundred sixty-eight thousand, two hundred forty-five".