810459383872 has 14 divisors (see below), whose sum is σ = 1608255339998. Its totient is φ = 405229691904.

The previous prime is 810459383869. The next prime is 810459383939. The reversal of 810459383872 is 278383954018.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 793781211136 + 16678172736 = 890944^2 + 129144^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6331713873 + ... + 6331714000.

Almost surely, 2^810459383872 is an apocalyptic number.

It is an amenable number.

810459383872 is a deficient number, since it is larger than the sum of its proper divisors (797795956126).

810459383872 is a wasteful number, since it uses less digits than its factorization.

810459383872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12663427885 (or 12663427875 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 58.

The spelling of 810459383872 in words is "eight hundred ten billion, four hundred fifty-nine million, three hundred eighty-three thousand, eight hundred seventy-two".