185400284011 has 2 divisors, whose sum is σ = 185400284012. Its totient is φ = 185400284010.

The previous prime is 185400283961. The next prime is 185400284099. The reversal of 185400284011 is 110482004581.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-185400284011 is a prime.

It is a super-3 number, since 3×185400284011³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (185400284711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92700142005 + 92700142006.

It is an arithmetic number, because the mean of its divisors is an integer number (92700142006).

Almost surely, 2^185400284011 is an apocalyptic number.

185400284011 is a deficient number, since it is larger than the sum of its proper divisors (1).

185400284011 is an equidigital number, since it uses as much as digits as its factorization.

185400284011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10240, while the sum is 34.

Adding to 185400284011 its reverse (110482004581), we get a palindrome (295882288592).

The spelling of 185400284011 in words is "one hundred eighty-five billion, four hundred million, two hundred eighty-four thousand, eleven".