766602076880 has 20 divisors (see below), whose sum is σ = 1782349828932. Its totient is φ = 306640830720.

The previous prime is 766602076853. The next prime is 766602076901. The reversal of 766602076880 is 88670206667.

It can be written as a sum of positive squares in 2 ways, for example, as 108855124624 + 657746952256 = 329932^2 + 811016^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4791262901 + ... + 4791263060.

Almost surely, 2^766602076880 is an apocalyptic number.

It is an amenable number.

766602076880 is an abundant number, since it is smaller than the sum of its proper divisors (1015747752052).

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

766602076880 is a wasteful number, since it uses less digits than its factorization.

766602076880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9582525974 (or 9582525968 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 766602076880 in words is "seven hundred sixty-six billion, six hundred two million, seventy-six thousand, eight hundred eighty".