18104000273 has 2 divisors, whose sum is σ = 18104000274. Its totient is φ = 18104000272.

The previous prime is 18104000269. The next prime is 18104000329. The reversal of 18104000273 is 37200040181.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13093767184 + 5010233089 = 114428^2 + 70783^2 .

It is a cyclic number.

It is not a de Polignac number, because 18104000273 - 2² = 18104000269 is a prime.

It is not a weakly prime, because it can be changed into another prime (18104000773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9052000136 + 9052000137.

It is an arithmetic number, because the mean of its divisors is an integer number (9052000137).

Almost surely, 2^18104000273 is an apocalyptic number.

It is an amenable number.

18104000273 is a deficient number, since it is larger than the sum of its proper divisors (1).

18104000273 is an equidigital number, since it uses as much as digits as its factorization.

18104000273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

The spelling of 18104000273 in words is "eighteen billion, one hundred four million, two hundred seventy-three", and thus it is an aban number.