856788611080 has 16 divisors (see below), whose sum is σ = 1927774375020. Its totient is φ = 342715444416.

The previous prime is 856788611069. The next prime is 856788611093. The reversal of 856788611080 is 80116887658.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 819999069444 + 36789541636 = 905538^2 + 191806^2 .

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 3 ways as a sum of consecutive naturals, for example, 10709857599 + ... + 10709857678.

Almost surely, 2^856788611080 is an apocalyptic number.

It is an amenable number.

856788611080 is an abundant number, since it is smaller than the sum of its proper divisors (1070985763940).

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

856788611080 is a wasteful number, since it uses less digits than its factorization.

856788611080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21419715288 (or 21419715284 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 58.

The spelling of 856788611080 in words is "eight hundred fifty-six billion, seven hundred eighty-eight million, six hundred eleven thousand, eighty".