810350642740 has 24 divisors (see below), whose sum is σ = 1709232995232. Its totient is φ = 322712324640.

The previous prime is 810350642737. The next prime is 810350642747. The reversal of 810350642740 is 47246053018.

It is a super-2 number, since 2×810350642740² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 810350642693 and 810350642702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810350642747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89241126 + ... + 89250205.

It is an arithmetic number, because the mean of its divisors is an integer number (71218041468).

Almost surely, 2^810350642740 is an apocalyptic number.

It is an amenable number.

810350642740 is an abundant number, since it is smaller than the sum of its proper divisors (898882352492).

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

810350642740 is a wasteful number, since it uses less digits than its factorization.

810350642740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178491567 (or 178491565 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

Adding to 810350642740 its reverse (47246053018), we get a palindrome (857596695758).

The spelling of 810350642740 in words is "eight hundred ten billion, three hundred fifty million, six hundred forty-two thousand, seven hundred forty".