81826284760 has 32 divisors (see below), whose sum is σ = 200846336400. Its totient is φ = 29755012480.

The previous prime is 81826284721. The next prime is 81826284779. The reversal of 81826284760 is 6748262818.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 81826284698 and 81826284707.

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, 92983975 + ... + 92984854.

Almost surely, 2^81826284760 is an apocalyptic number.

It is an amenable number.

81826284760 is an abundant number, since it is smaller than the sum of its proper divisors (119020051640).

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

81826284760 is a wasteful number, since it uses less digits than its factorization.

81826284760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185968851 (or 185968847 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 52.

The spelling of 81826284760 in words is "eighty-one billion, eight hundred twenty-six million, two hundred eighty-four thousand, seven hundred sixty".