827844923829 has 64 divisors (see below), whose sum is σ = 1389770680320. Its totient is φ = 425799659520.

The previous prime is 827844923813. The next prime is 827844923831. The reversal of 827844923829 is 928329448728.

It is not a de Polignac number, because 827844923829 - 2⁴ = 827844923813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 827844923829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827844923629) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 51625797 + ... + 51641829.

It is an arithmetic number, because the mean of its divisors is an integer number (21715166880).

Almost surely, 2^827844923829 is an apocalyptic number.

It is an amenable number.

827844923829 is a deficient number, since it is larger than the sum of its proper divisors (561925756491).

827844923829 is a wasteful number, since it uses less digits than its factorization.

827844923829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18250.

The product of its digits is 111476736, while the sum is 66.

The spelling of 827844923829 in words is "eight hundred twenty-seven billion, eight hundred forty-four million, nine hundred twenty-three thousand, eight hundred twenty-nine".