823609896324 has 12 divisors (see below), whose sum is σ = 1921756424784. Its totient is φ = 274536632104.

The previous prime is 823609896323. The next prime is 823609896379. The reversal of 823609896324 is 423698906328.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×823609896324² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (823609896323) 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 3 ways as a sum of consecutive naturals, for example, 34317079002 + ... + 34317079025.

It is an arithmetic number, because the mean of its divisors is an integer number (160146368732).

Almost surely, 2^823609896324 is an apocalyptic number.

It is an amenable number.

823609896324 is an abundant number, since it is smaller than the sum of its proper divisors (1098146528460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

823609896324 is a wasteful number, since it uses less digits than its factorization.

823609896324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68634158034 (or 68634158032 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 60.

The spelling of 823609896324 in words is "eight hundred twenty-three billion, six hundred nine million, eight hundred ninety-six thousand, three hundred twenty-four".