18484473571 has 16 divisors (see below), whose sum is σ = 19211931648. Its totient is φ = 17765640000.

The previous prime is 18484473533. The next prime is 18484473593. The reversal of 18484473571 is 17537448481.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 18484473571 - 2¹⁹ = 18483949283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18484473521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2852391 + ... + 2858863.

It is an arithmetic number, because the mean of its divisors is an integer number (1200745728).

Almost surely, 2^18484473571 is an apocalyptic number.

18484473571 is a deficient number, since it is larger than the sum of its proper divisors (727458077).

18484473571 is a wasteful number, since it uses less digits than its factorization.

18484473571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7122.

The product of its digits is 3010560, while the sum is 52.

The spelling of 18484473571 in words is "eighteen billion, four hundred eighty-four million, four hundred seventy-three thousand, five hundred seventy-one".