823647823413 has 16 divisors (see below), whose sum is σ = 1146480241536. Its totient is φ = 524979287360.

The previous prime is 823647823391. The next prime is 823647823447. The reversal of 823647823413 is 314328746328.

It is a cyclic number.

It is not a de Polignac number, because 823647823413 - 2⁵ = 823647823381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823647823213) 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, 2639970 + ... + 2935427.

It is an arithmetic number, because the mean of its divisors is an integer number (71655015096).

Almost surely, 2^823647823413 is an apocalyptic number.

It is an amenable number.

823647823413 is a deficient number, since it is larger than the sum of its proper divisors (322832418123).

823647823413 is a wasteful number, since it uses less digits than its factorization.

823647823413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5577564.

The product of its digits is 4644864, while the sum is 51.

The spelling of 823647823413 in words is "eight hundred twenty-three billion, six hundred forty-seven million, eight hundred twenty-three thousand, four hundred thirteen".