18664962464309 has 8 divisors (see below), whose sum is σ = 22066950696960. Its totient is φ = 15446865487536.

The previous prime is 18664962464233. The next prime is 18664962464311. The reversal of 18664962464309 is 90346426946681.

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

It is a de Polignac number, because none of the positive numbers 2^k-18664962464309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18664962164309) 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, 45972813749 + ... + 45972814154.

It is an arithmetic number, because the mean of its divisors is an integer number (2758368837120).

Almost surely, 2^{18664962464309} is an apocalyptic number.

It is an amenable number.

18664962464309 is a deficient number, since it is larger than the sum of its proper divisors (3401988232651).

18664962464309 is an equidigital number, since it uses as much as digits as its factorization.

18664962464309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91945627939.

The product of its (nonzero) digits is 322486272, while the sum is 68.

The spelling of 18664962464309 in words is "eighteen trillion, six hundred sixty-four billion, nine hundred sixty-two million, four hundred sixty-four thousand, three hundred nine".