18124350527 has 4 divisors (see below), whose sum is σ = 18342716280. Its totient is φ = 17905984776.

The previous prime is 18124350523. The next prime is 18124350533. The reversal of 18124350527 is 72505342181.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72505342181 = 181 ⋅400582001.

It is a cyclic number.

It is not a de Polignac number, because 18124350527 - 2² = 18124350523 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 (18124350521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109182752 + ... + 109182917.

It is an arithmetic number, because the mean of its divisors is an integer number (4585679070).

Almost surely, 2^18124350527 is an apocalyptic number.

18124350527 is a deficient number, since it is larger than the sum of its proper divisors (218365753).

18124350527 is an equidigital number, since it uses as much as digits as its factorization.

18124350527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218365752.

The product of its (nonzero) digits is 67200, while the sum is 38.

The spelling of 18124350527 in words is "eighteen billion, one hundred twenty-four million, three hundred fifty thousand, five hundred twenty-seven".