810083322120440 has 32 divisors (see below), whose sum is σ = 1822695678834480. Its totient is φ = 324031870348032.

The previous prime is 810083322120439. The next prime is 810083322120463. The reversal of 810083322120440 is 44021223380018.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 810083322120394 and 810083322120403.

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, 36558254 + ... + 54375293.

Almost surely, 2^{810083322120440} is an apocalyptic number.

It is an amenable number.

810083322120440 is an abundant number, since it is smaller than the sum of its proper divisors (1012612356714040).

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

810083322120440 is a wasteful number, since it uses less digits than its factorization.

810083322120440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91156271 (or 91156267 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The spelling of 810083322120440 in words is "eight hundred ten trillion, eighty-three billion, three hundred twenty-two million, one hundred twenty thousand, four hundred forty".