812605211310 has 16 divisors (see below), whose sum is σ = 1950252507216. Its totient is φ = 216694723008.

The previous prime is 812605211309. The next prime is 812605211381. The reversal of 812605211310 is 13112506218.

812605211310 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×812605211310² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 27086840377 = 812605211310 / (8 + 1 + 2 + 6 + 0 + 5 + 2 + 1 + 1 + 3 + 1 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13543420159 + ... + 13543420218.

It is an arithmetic number, because the mean of its divisors is an integer number (121890781701).

Almost surely, 2^812605211310 is an apocalyptic number.

812605211310 is an abundant number, since it is smaller than the sum of its proper divisors (1137647295906).

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

812605211310 is a wasteful number, since it uses less digits than its factorization.

812605211310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27086840387.

The product of its (nonzero) digits is 2880, while the sum is 30.

Adding to 812605211310 its reverse (13112506218), we get a palindrome (825717717528).

The spelling of 812605211310 in words is "eight hundred twelve billion, six hundred five million, two hundred eleven thousand, three hundred ten".