18048729271 has 8 divisors (see below), whose sum is σ = 18082905984. Its totient is φ = 18014585400.

The previous prime is 18048729221. The next prime is 18048729277. The reversal of 18048729271 is 17292784081.

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 18048729271 - 2⁷ = 18048729143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18048729277) 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 7 ways as a sum of consecutive naturals, for example, 1274190 + ... + 1288276.

It is an arithmetic number, because the mean of its divisors is an integer number (2260363248).

Almost surely, 2^18048729271 is an apocalyptic number.

18048729271 is a deficient number, since it is larger than the sum of its proper divisors (34176713).

18048729271 is a wasteful number, since it uses less digits than its factorization.

18048729271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16421.

The product of its (nonzero) digits is 451584, while the sum is 49.

The spelling of 18048729271 in words is "eighteen billion, forty-eight million, seven hundred twenty-nine thousand, two hundred seventy-one".