810426300885 has 24 divisors (see below), whose sum is σ = 1404760541184. Its totient is φ = 432220708320.

The previous prime is 810426300883. The next prime is 810426300889. The reversal of 810426300885 is 588003624018.

810426300885 is a `hidden beast` number, since 8 + 1 + 0 + 4 + 2 + 630 + 0 + 8 + 8 + 5 = 666.

It is not a de Polignac number, because 810426300885 - 2¹ = 810426300883 is a prime.

It is a super-2 number, since 2×810426300885² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 810426300885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810426300883) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4593004 + ... + 4766186.

It is an arithmetic number, because the mean of its divisors is an integer number (58531689216).

Almost surely, 2^810426300885 is an apocalyptic number.

It is an amenable number.

810426300885 is a deficient number, since it is larger than the sum of its proper divisors (594334240299).

810426300885 is a wasteful number, since it uses less digits than its factorization.

810426300885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277185 (or 277182 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 810426300885 in words is "eight hundred ten billion, four hundred twenty-six million, three hundred thousand, eight hundred eighty-five".