823609896321 has 8 divisors (see below), whose sum is σ = 1145892029760. Its totient is φ = 525200513552.

The previous prime is 823609896313. The next prime is 823609896323. The reversal of 823609896321 is 123698906328.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 823609896321 - 2³ = 823609896313 is a prime.

It is a super-2 number, since 2×823609896321² (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 7 ways as a sum of consecutive naturals, for example, 5968187586 + ... + 5968187723.

It is an arithmetic number, because the mean of its divisors is an integer number (143236503720).

Almost surely, 2^823609896321 is an apocalyptic number.

It is an amenable number.

823609896321 is a deficient number, since it is larger than the sum of its proper divisors (322282133439).

823609896321 is a wasteful number, since it uses less digits than its factorization.

823609896321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11936375335.

The product of its (nonzero) digits is 6718464, while the sum is 57.

The spelling of 823609896321 in words is "eight hundred twenty-three billion, six hundred nine million, eight hundred ninety-six thousand, three hundred twenty-one".