3768518905 has 4 divisors (see below), whose sum is σ = 4522222692. Its totient is φ = 3014815120.

The previous prime is 3768518903. The next prime is 3768518947. The reversal of 3768518905 is 5098158673.

3768518905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5098158673 = 5779 ⋅882187.

It can be written as a sum of positive squares in 2 ways, for example, as 1284792336 + 2483726569 = 35844^2 + 49837^2 .

It is not a de Polignac number, because 3768518905 - 2¹ = 3768518903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3768518903) 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, 376851886 + ... + 376851895.

It is an arithmetic number, because the mean of its divisors is an integer number (1130555673).

Almost surely, 2^3768518905 is an apocalyptic number.

It is an amenable number.

3768518905 is a deficient number, since it is larger than the sum of its proper divisors (753703787).

3768518905 is an equidigital number, since it uses as much as digits as its factorization.

3768518905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753703786.

The product of its (nonzero) digits is 1814400, while the sum is 52.

The square root of 3768518905 is about 61388.2635770063. The cubic root of 3768518905 is about 1556.1695009947.

The spelling of 3768518905 in words is "three billion, seven hundred sixty-eight million, five hundred eighteen thousand, nine hundred five".