766529880 has 64 divisors (see below), whose sum is σ = 2307191040. Its totient is φ = 203732352.

The previous prime is 766529867. The next prime is 766529887. The reversal of 766529880 is 88925667.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766529887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26437 + ... + 47243.

It is an arithmetic number, because the mean of its divisors is an integer number (36049860).

Almost surely, 2^766529880 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 766529880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1153595520).

766529880 is an abundant number, since it is smaller than the sum of its proper divisors (1540661160).

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

766529880 is a wasteful number, since it uses less digits than its factorization.

766529880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21128 (or 21124 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The square root of 766529880 is about 27686.2760226073. The cubic root of 766529880 is about 915.1866918768.

The spelling of 766529880 in words is "seven hundred sixty-six million, five hundred twenty-nine thousand, eight hundred eighty".