18397846379 has 8 divisors (see below), whose sum is σ = 20399401200. Its totient is φ = 16451128800.

The previous prime is 18397846289. The next prime is 18397846393. The reversal of 18397846379 is 97364879381.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18397846379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18397846079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13708604 + ... + 13709945.

It is an arithmetic number, because the mean of its divisors is an integer number (2549925150).

Almost surely, 2^18397846379 is an apocalyptic number.

18397846379 is a deficient number, since it is larger than the sum of its proper divisors (2001554821).

18397846379 is a wasteful number, since it uses less digits than its factorization.

18397846379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27418621.

The product of its digits is 54867456, while the sum is 65.

The spelling of 18397846379 in words is "eighteen billion, three hundred ninety-seven million, eight hundred forty-six thousand, three hundred seventy-nine".