810513147386 has 8 divisors (see below), whose sum is σ = 1217188358100. Its totient is φ = 404783694688.

The previous prime is 810513147377. The next prime is 810513147427. The reversal of 810513147386 is 683741315018.

It can be written as a sum of positive squares in 2 ways, for example, as 521478958225 + 289034189161 = 722135^2 + 537619^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 810513147386.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236437361 + ... + 236440788.

Almost surely, 2^810513147386 is an apocalyptic number.

810513147386 is a deficient number, since it is larger than the sum of its proper divisors (406675210714).

810513147386 is a wasteful number, since it uses less digits than its factorization.

810513147386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472879008.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 810513147386 in words is "eight hundred ten billion, five hundred thirteen million, one hundred forty-seven thousand, three hundred eighty-six".