1768928893 has 8 divisors (see below), whose sum is σ = 1817751128. Its totient is φ = 1720160064.

The previous prime is 1768928881. The next prime is 1768928933. The reversal of 1768928893 is 3988298671.

It can be written as a sum of positive squares in 4 ways, for example, as 311063769 + 1457865124 = 17637^2 + 38182^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1768928893 - 2¹³ = 1768920701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1768928093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59155 + ... + 83887.

It is an arithmetic number, because the mean of its divisors is an integer number (227218891).

Almost surely, 2^1768928893 is an apocalyptic number.

It is an amenable number.

1768928893 is a deficient number, since it is larger than the sum of its proper divisors (48822235).

1768928893 is a wasteful number, since it uses less digits than its factorization.

1768928893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26703.

The product of its digits is 10450944, while the sum is 61.

The square root of 1768928893 is about 42058.6363663873. The cubic root of 1768928893 is about 1209.4004481404.

The spelling of 1768928893 in words is "one billion, seven hundred sixty-eight million, nine hundred twenty-eight thousand, eight hundred ninety-three".