812560768 has 32 divisors (see below), whose sum is σ = 1624860000. Its totient is φ = 404752896.

The previous prime is 812560753. The next prime is 812560807. The reversal of 812560768 is 867065218.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22633 + ... + 46231.

It is an arithmetic number, because the mean of its divisors is an integer number (50776875).

Almost surely, 2^812560768 is an apocalyptic number.

It is an amenable number.

812560768 is a deficient number, since it is larger than the sum of its proper divisors (812299232).

812560768 is a wasteful number, since it uses less digits than its factorization.

812560768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23882 (or 23870 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 812560768 is about 28505.4515487827. The cubic root of 812560768 is about 933.1510519308.

The spelling of 812560768 in words is "eight hundred twelve million, five hundred sixty thousand, seven hundred sixty-eight".