18389339351 has 8 divisors (see below), whose sum is σ = 18749551680. Its totient is φ = 18029617632.

The previous prime is 18389339347. The next prime is 18389339389. The reversal of 18389339351 is 15393398381.

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 18389339351 - 2² = 18389339347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18389339293 and 18389339302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18389339341) 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, 46496 + ... + 197333.

It is an arithmetic number, because the mean of its divisors is an integer number (2343693960).

Almost surely, 2^18389339351 is an apocalyptic number.

18389339351 is a deficient number, since it is larger than the sum of its proper divisors (360212329).

18389339351 is a wasteful number, since it uses less digits than its factorization.

18389339351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245305.

The product of its digits is 2099520, while the sum is 53.

The spelling of 18389339351 in words is "eighteen billion, three hundred eighty-nine million, three hundred thirty-nine thousand, three hundred fifty-one".