766187868 has 48 divisors (see below), whose sum is σ = 1884798720. Its totient is φ = 241764864.

The previous prime is 766187867. The next prime is 766187887. The reversal of 766187868 is 868781667.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766187861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12463 + ... + 41081.

It is an arithmetic number, because the mean of its divisors is an integer number (39266640).

Almost surely, 2^766187868 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 766187868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (942399360).

766187868 is an abundant number, since it is smaller than the sum of its proper divisors (1118610852).

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

766187868 is a wasteful number, since it uses less digits than its factorization.

766187868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28746 (or 28744 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 57.

The square root of 766187868 is about 27680.0987715001. The cubic root of 766187868 is about 915.0505582861.

The spelling of 766187868 in words is "seven hundred sixty-six million, one hundred eighty-seven thousand, eight hundred sixty-eight".