18033868971 has 8 divisors (see below), whose sum is σ = 26716842960. Its totient is φ = 12022579296.

The previous prime is 18033868969. The next prime is 18033868999. The reversal of 18033868971 is 17986833081.

18033868971 is a `hidden beast` number, since 180 + 3 + 386 + 89 + 7 + 1 = 666.

It is not a de Polignac number, because 18033868971 - 2¹ = 18033868969 is a prime.

It is a super-3 number, since 3×18033868971³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (18033868961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333960510 + ... + 333960563.

It is an arithmetic number, because the mean of its divisors is an integer number (3339605370).

Almost surely, 2^18033868971 is an apocalyptic number.

18033868971 is a deficient number, since it is larger than the sum of its proper divisors (8682973989).

18033868971 is an equidigital number, since it uses as much as digits as its factorization.

18033868971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667921082 (or 667921076 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 18033868971 in words is "eighteen billion, thirty-three million, eight hundred sixty-eight thousand, nine hundred seventy-one".