810623850936 has 256 divisors, whose sum is σ = 2207361024000. Its totient is φ = 247513190400.

The previous prime is 810623850931. The next prime is 810623850941. The reversal of 810623850936 is 639058326018.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (810623850931) and next prime (810623850941).

It is a super-2 number, since 2×810623850936² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810623850931) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 192957636 + ... + 192961836.

It is an arithmetic number, because the mean of its divisors is an integer number (8622504000).

Almost surely, 2^810623850936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 810623850936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1103680512000).

810623850936 is an abundant number, since it is smaller than the sum of its proper divisors (1396737173064).

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

810623850936 is a wasteful number, since it uses less digits than its factorization.

810623850936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4462 (or 4458 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 51.

The spelling of 810623850936 in words is "eight hundred ten billion, six hundred twenty-three million, eight hundred fifty thousand, nine hundred thirty-six".