810944283786 has 128 divisors (see below), whose sum is σ = 2104050278400. Its totient is φ = 202347072000.

The previous prime is 810944283781. The next prime is 810944283803. The reversal of 810944283786 is 687382449018.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (810944283781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7738830 + ... + 7842918.

It is an arithmetic number, because the mean of its divisors is an integer number (16437892800).

Almost surely, 2^810944283786 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 810944283786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1052025139200).

810944283786 is an abundant number, since it is smaller than the sum of its proper divisors (1293105994614).

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

810944283786 is a wasteful number, since it uses less digits than its factorization.

810944283786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104884.

The product of its (nonzero) digits is 18579456, while the sum is 60.

The spelling of 810944283786 in words is "eight hundred ten billion, nine hundred forty-four million, two hundred eighty-three thousand, seven hundred eighty-six".