18904114271 has 4 divisors (see below), whose sum is σ = 21604702032. Its totient is φ = 16203526512.

The previous prime is 18904114249. The next prime is 18904114289. The reversal of 18904114271 is 17241140981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17241140981 = 43 ⋅400956767.

It is a cyclic number.

It is not a de Polignac number, because 18904114271 - 2¹⁴ = 18904097887 is a prime.

It is a super-2 number, since 2×18904114271² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18904174271) 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 3 ways as a sum of consecutive naturals, for example, 1350293870 + ... + 1350293883.

It is an arithmetic number, because the mean of its divisors is an integer number (5401175508).

Almost surely, 2^18904114271 is an apocalyptic number.

18904114271 is a deficient number, since it is larger than the sum of its proper divisors (2700587761).

18904114271 is an equidigital number, since it uses as much as digits as its factorization.

18904114271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700587760.

The product of its (nonzero) digits is 16128, while the sum is 38.

The spelling of 18904114271 in words is "eighteen billion, nine hundred four million, one hundred fourteen thousand, two hundred seventy-one".