18672093439 has 8 divisors (see below), whose sum is σ = 19389411360. Its totient is φ = 17959672416.

The previous prime is 18672093437. The next prime is 18672093443. The reversal of 18672093439 is 93439027681.

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 18672093439 - 2¹ = 18672093437 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 (18672093437) 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, 1216452 + ... + 1231705.

It is an arithmetic number, because the mean of its divisors is an integer number (2423676420).

Almost surely, 2^18672093439 is an apocalyptic number.

18672093439 is a deficient number, since it is larger than the sum of its proper divisors (717317921).

18672093439 is a wasteful number, since it uses less digits than its factorization.

18672093439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448449.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 18672093439 in words is "eighteen billion, six hundred seventy-two million, ninety-three thousand, four hundred thirty-nine".