18484139519 has 8 divisors (see below), whose sum is σ = 18636428160. Its totient is φ = 18332127000.

The previous prime is 18484139507. The next prime is 18484139537. The reversal of 18484139519 is 91593148481.

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 18484139519 - 2¹⁶ = 18484073983 is a prime.

It is a super-2 number, since 2×18484139519² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18484139539) 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, 66494 + ... + 203444.

It is an arithmetic number, because the mean of its divisors is an integer number (2329553520).

Almost surely, 2^18484139519 is an apocalyptic number.

18484139519 is a deficient number, since it is larger than the sum of its proper divisors (152288641).

18484139519 is a wasteful number, since it uses less digits than its factorization.

18484139519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138061.

The product of its digits is 1244160, while the sum is 53.

The spelling of 18484139519 in words is "eighteen billion, four hundred eighty-four million, one hundred thirty-nine thousand, five hundred nineteen".