876520265780 has 24 divisors (see below), whose sum is σ = 1841660913960. Its totient is φ = 350423657600.

The previous prime is 876520265771. The next prime is 876520265801. The reversal of 876520265780 is 87562025678.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 42929353636 + 833590912144 = 207194^2 + 913012^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11489075 + ... + 11565114.

It is an arithmetic number, because the mean of its divisors is an integer number (76735871415).

Almost surely, 2^876520265780 is an apocalyptic number.

It is an amenable number.

876520265780 is an abundant number, since it is smaller than the sum of its proper divisors (965140648180).

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

876520265780 is a wasteful number, since it uses less digits than its factorization.

876520265780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23056099 (or 23056097 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 56.

The spelling of 876520265780 in words is "eight hundred seventy-six billion, five hundred twenty million, two hundred sixty-five thousand, seven hundred eighty".