18664296347 has 8 divisors (see below), whose sum is σ = 18705722880. Its totient is φ = 18622909440.

The previous prime is 18664296341. The next prime is 18664296349. The reversal of 18664296347 is 74369246681.

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 18664296347 - 2⁶ = 18664296283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18664296292 and 18664296301.

It is not an unprimeable number, because it can be changed into a prime (18664296341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1057229 + ... + 1074737.

It is an arithmetic number, because the mean of its divisors is an integer number (2338215360).

Almost surely, 2^18664296347 is an apocalyptic number.

18664296347 is a deficient number, since it is larger than the sum of its proper divisors (41426533).

18664296347 is a wasteful number, since it uses less digits than its factorization.

18664296347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19813.

The product of its digits is 10450944, while the sum is 56.

The spelling of 18664296347 in words is "eighteen billion, six hundred sixty-four million, two hundred ninety-six thousand, three hundred forty-seven".