326988872609 has 16 divisors (see below), whose sum is σ = 378995385600. Its totient is φ = 276306448320.

The previous prime is 326988872599. The next prime is 326988872633. The reversal of 326988872609 is 906278889623.

It is a de Polignac number, because none of the positive numbers 2^k-326988872609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326988872009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9997727 + ... + 10030379.

It is an arithmetic number, because the mean of its divisors is an integer number (23687211600).

Almost surely, 2^326988872609 is an apocalyptic number.

It is an amenable number.

326988872609 is a deficient number, since it is larger than the sum of its proper divisors (52006512991).

326988872609 is a wasteful number, since it uses less digits than its factorization.

326988872609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52880.

The product of its (nonzero) digits is 125411328, while the sum is 68.

The spelling of 326988872609 in words is "three hundred twenty-six billion, nine hundred eighty-eight million, eight hundred seventy-two thousand, six hundred nine".