821730647114 has 32 divisors (see below), whose sum is σ = 1336503369600. Its totient is φ = 376663194432.

The previous prime is 821730647093. The next prime is 821730647117. The reversal of 821730647114 is 411746037128.

It is not an unprimeable number, because it can be changed into a prime (821730647117) 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 15 ways as a sum of consecutive naturals, for example, 55805357 + ... + 55820079.

It is an arithmetic number, because the mean of its divisors is an integer number (41765730300).

Almost surely, 2^821730647114 is an apocalyptic number.

821730647114 is a deficient number, since it is larger than the sum of its proper divisors (514772722486).

821730647114 is a wasteful number, since it uses less digits than its factorization.

821730647114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29294.

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 821730647114 in words is "eight hundred twenty-one billion, seven hundred thirty million, six hundred forty-seven thousand, one hundred fourteen".