326640908869 has 8 divisors (see below), whose sum is σ = 362375123040. Its totient is φ = 291913292400.

The previous prime is 326640908863. The next prime is 326640908941. The reversal of 326640908869 is 968809046623.

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 326640908869 - 2⁹ = 326640908357 is a prime.

It is a super-2 number, since 2×326640908869² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326640908863) 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, 251648742 + ... + 251650039.

It is an arithmetic number, because the mean of its divisors is an integer number (45296890380).

Almost surely, 2^326640908869 is an apocalyptic number.

It is an amenable number.

326640908869 is a deficient number, since it is larger than the sum of its proper divisors (35734214171).

326640908869 is a wasteful number, since it uses less digits than its factorization.

326640908869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503298851.

The product of its (nonzero) digits is 26873856, while the sum is 61.

The spelling of 326640908869 in words is "three hundred twenty-six billion, six hundred forty million, nine hundred eight thousand, eight hundred sixty-nine".