763868780 has 72 divisors (see below), whose sum is σ = 1703892960. Its totient is φ = 287608320.

The previous prime is 763868771. The next prime is 763868821. The reversal of 763868780 is 87868367.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1739801 + ... + 1740239.

It is an arithmetic number, because the mean of its divisors is an integer number (23665180).

Almost surely, 2^763868780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 763868780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (851946480).

763868780 is an abundant number, since it is smaller than the sum of its proper divisors (940024180).

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

763868780 is a wasteful number, since it uses less digits than its factorization.

763868780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727 (or 706 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 53.

The square root of 763868780 is about 27638.1761337466. The cubic root of 763868780 is about 914.1264039994.

The spelling of 763868780 in words is "seven hundred sixty-three million, eight hundred sixty-eight thousand, seven hundred eighty".