766355868 has 54 divisors (see below), whose sum is σ = 1981337904. Its totient is φ = 249645312.

The previous prime is 766355839. The next prime is 766355879. The reversal of 766355868 is 868553667.

It is a congruent number.

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 17 ways as a sum of consecutive naturals, for example, 1138380 + ... + 1139052.

Almost surely, 2^766355868 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 766355868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (990668952).

766355868 is an abundant number, since it is smaller than the sum of its proper divisors (1214982036).

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

766355868 is a wasteful number, since it uses less digits than its factorization.

766355868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403 (or 725 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The square root of 766355868 is about 27683.1332764194. The cubic root of 766355868 is about 915.1174336421.

The spelling of 766355868 in words is "seven hundred sixty-six million, three hundred fifty-five thousand, eight hundred sixty-eight".