810465912 has 80 divisors (see below), whose sum is σ = 2276445600. Its totient is φ = 269395200.

The previous prime is 810465911. The next prime is 810465941. The reversal of 810465912 is 219564018.

810465912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810465911) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 258289 + ... + 261407.

It is an arithmetic number, because the mean of its divisors is an integer number (28455570).

Almost surely, 2^810465912 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 810465912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1138222800).

810465912 is an abundant number, since it is smaller than the sum of its proper divisors (1465979688).

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

810465912 is a wasteful number, since it uses less digits than its factorization.

810465912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3538 (or 3525 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 810465912 is about 28468.6830043119. The cubic root of 810465912 is about 932.3484455427.

The spelling of 810465912 in words is "eight hundred ten million, four hundred sixty-five thousand, nine hundred twelve".