82128782348 has 48 divisors (see below), whose sum is σ = 160457320800. Its totient is φ = 36553420800.

The previous prime is 82128782293. The next prime is 82128782381. The reversal of 82128782348 is 84328782128.

It is a self number, because there is not a number n which added to its sum of digits gives 82128782348.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 723608 + ... + 829376.

It is an arithmetic number, because the mean of its divisors is an integer number (3342860850).

Almost surely, 2^82128782348 is an apocalyptic number.

It is an amenable number.

82128782348 is a deficient number, since it is larger than the sum of its proper divisors (78328538452).

82128782348 is a wasteful number, since it uses less digits than its factorization.

82128782348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106410 (or 106408 counting only the distinct ones).

The product of its digits is 2752512, while the sum is 53.

The spelling of 82128782348 in words is "eighty-two billion, one hundred twenty-eight million, seven hundred eighty-two thousand, three hundred forty-eight".