18128671071 has 96 divisors (see below), whose sum is σ = 30208942080. Its totient is φ = 9623577600.

The previous prime is 18128671061. The next prime is 18128671079. The reversal of 18128671071 is 17017682181.

It is not a de Polignac number, because 18128671071 - 2¹⁰ = 18128670047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18128671079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13319431 + ... + 13320791.

It is an arithmetic number, because the mean of its divisors is an integer number (314676480).

Almost surely, 2^18128671071 is an apocalyptic number.

18128671071 is a deficient number, since it is larger than the sum of its proper divisors (12080271009).

18128671071 is a wasteful number, since it uses less digits than its factorization.

18128671071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525 (or 1518 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 42.

The spelling of 18128671071 in words is "eighteen billion, one hundred twenty-eight million, six hundred seventy-one thousand, seventy-one".