821033418029 has 8 divisors (see below), whose sum is σ = 903075075840. Its totient is φ = 746394015180.

The previous prime is 821033418019. The next prime is 821033418047. The reversal of 821033418029 is 920814330128.

It is a de Polignac number, because none of the positive numbers 2^k-821033418029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (821033418019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308425949 + ... + 308428610.

It is an arithmetic number, because the mean of its divisors is an integer number (112884384480).

Almost surely, 2^821033418029 is an apocalyptic number.

It is an amenable number.

821033418029 is a deficient number, since it is larger than the sum of its proper divisors (82041657811).

821033418029 is an equidigital number, since it uses as much as digits as its factorization.

821033418029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616854592 (or 616854570 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 821033418029 in words is "eight hundred twenty-one billion, thirty-three million, four hundred eighteen thousand, twenty-nine".