1768923385 has 16 divisors (see below), whose sum is σ = 2135126736. Its totient is φ = 1406884608.

The previous prime is 1768923361. The next prime is 1768923397. The reversal of 1768923385 is 5833298671.

It can be written as a sum of positive squares in 8 ways, for example, as 564347536 + 1204575849 = 23756^2 + 34707^2 .

It is a cyclic number.

It is not a de Polignac number, because 1768923385 - 2²¹ = 1766826233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 770299 + ... + 772591.

It is an arithmetic number, because the mean of its divisors is an integer number (133445421).

Almost surely, 2^1768923385 is an apocalyptic number.

It is an amenable number.

1768923385 is a deficient number, since it is larger than the sum of its proper divisors (366203351).

1768923385 is a wasteful number, since it uses less digits than its factorization.

1768923385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132.

The product of its digits is 2177280, while the sum is 52.

The square root of 1768923385 is about 42058.5708863247. The cubic root of 1768923385 is about 1209.3991928827.

The spelling of 1768923385 in words is "one billion, seven hundred sixty-eight million, nine hundred twenty-three thousand, three hundred eighty-five".