18804002071 has 4 divisors (see below), whose sum is σ = 18870447592. Its totient is φ = 18737556552.

The previous prime is 18804002051. The next prime is 18804002083. The reversal of 18804002071 is 17020040881.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18804002071 - 2¹¹ = 18804000023 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 (18804002051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33222336 + ... + 33222901.

It is an arithmetic number, because the mean of its divisors is an integer number (4717611898).

Almost surely, 2^18804002071 is an apocalyptic number.

18804002071 is a deficient number, since it is larger than the sum of its proper divisors (66445521).

18804002071 is an equidigital number, since it uses as much as digits as its factorization.

18804002071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66445520.

The product of its (nonzero) digits is 3584, while the sum is 31.

The spelling of 18804002071 in words is "eighteen billion, eight hundred four million, two thousand, seventy-one".