18016528679 has 4 divisors (see below), whose sum is σ = 18028946760. Its totient is φ = 18004110600.

The previous prime is 18016528619. The next prime is 18016528693. The reversal of 18016528679 is 97682561081.

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 18016528679 - 2²⁴ = 17999751463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18016528679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18016528619) 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, 6206864 + ... + 6209765.

It is an arithmetic number, because the mean of its divisors is an integer number (4507236690).

Almost surely, 2^18016528679 is an apocalyptic number.

18016528679 is a deficient number, since it is larger than the sum of its proper divisors (12418081).

18016528679 is a wasteful number, since it uses less digits than its factorization.

18016528679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12418080.

The product of its (nonzero) digits is 1451520, while the sum is 53.

The spelling of 18016528679 in words is "eighteen billion, sixteen million, five hundred twenty-eight thousand, six hundred seventy-nine".