1768865280 has 320 divisors, whose sum is σ = 6962554368. Its totient is φ = 373063680.

The previous prime is 1768865269. The next prime is 1768865281. The reversal of 1768865280 is 825688671.

It is a tau number, because it is divible by the number of its divisors (320).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1768865281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 697615 + ... + 700145.

Almost surely, 2^1768865280 is an apocalyptic number.

1768865280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1768865280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3481277184).

1768865280 is an abundant number, since it is smaller than the sum of its proper divisors (5193689088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1768865280 is a wasteful number, since it uses less digits than its factorization.

1768865280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577 (or 2561 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 51.

The square root of 1768865280 is about 42057.8801177615. The cubic root of 1768865280 is about 1209.3859507585.

The spelling of 1768865280 in words is "one billion, seven hundred sixty-eight million, eight hundred sixty-five thousand, two hundred eighty".