18129072527 has 8 divisors (see below), whose sum is σ = 19197740016. Its totient is φ = 17060655232.

The previous prime is 18129072517. The next prime is 18129072529. The reversal of 18129072527 is 72527092181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18129072527 - 2⁸ = 18129072271 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18129072529) 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 7 ways as a sum of consecutive naturals, for example, 98513 + ... + 214389.

It is an arithmetic number, because the mean of its divisors is an integer number (2399717502).

Almost surely, 2^18129072527 is an apocalyptic number.

18129072527 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

18129072527 is a deficient number, since it is larger than the sum of its proper divisors (1068667489).

18129072527 is a wasteful number, since it uses less digits than its factorization.

18129072527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125097.

The product of its (nonzero) digits is 141120, while the sum is 44.

The spelling of 18129072527 in words is "eighteen billion, one hundred twenty-nine million, seventy-two thousand, five hundred twenty-seven".