18477474485 has 8 divisors (see below), whose sum is σ = 22644734976. Its totient is φ = 14467469200.

The previous prime is 18477474473. The next prime is 18477474517. The reversal of 18477474485 is 58447477481.

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 18477474485 - 2¹⁴ = 18477458101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 39313541 + ... + 39314010.

It is an arithmetic number, because the mean of its divisors is an integer number (2830591872).

Almost surely, 2^18477474485 is an apocalyptic number.

It is an amenable number.

18477474485 is a deficient number, since it is larger than the sum of its proper divisors (4167260491).

18477474485 is an equidigital number, since it uses as much as digits as its factorization.

18477474485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78627603.

The product of its digits is 28098560, while the sum is 59.

The spelling of 18477474485 in words is "eighteen billion, four hundred seventy-seven million, four hundred seventy-four thousand, four hundred eighty-five".