18532489047 has 8 divisors (see below), whose sum is σ = 24763588080. Its totient is φ = 12328191360.

The previous prime is 18532488979. The next prime is 18532489069. The reversal of 18532489047 is 74098423581.

It is a happy number.

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

It is not a de Polignac number, because 18532489047 - 2²⁰ = 18531440471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18532489247) 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, 6698722 + ... + 6701487.

It is an arithmetic number, because the mean of its divisors is an integer number (3095448510).

Almost surely, 2^18532489047 is an apocalyptic number.

18532489047 is a deficient number, since it is larger than the sum of its proper divisors (6231099033).

18532489047 is a wasteful number, since it uses less digits than its factorization.

18532489047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13400673.

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 18532489047 in words is "eighteen billion, five hundred thirty-two million, four hundred eighty-nine thousand, forty-seven".