16529428589 has 4 divisors (see below), whose sum is σ = 16531925724. Its totient is φ = 16526931456.

The previous prime is 16529428549. The next prime is 16529428603. The reversal of 16529428589 is 98582492561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98582492561 = 7 ⋅14083213223.

It can be written as a sum of positive squares in 2 ways, for example, as 1105030564 + 15424398025 = 33242^2 + 124195^2 .

It is a cyclic number.

It is not a de Polignac number, because 16529428589 - 2³² = 12234461293 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 (16529428529) 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, 1238612 + ... + 1251885.

It is an arithmetic number, because the mean of its divisors is an integer number (4132981431).

Almost surely, 2^16529428589 is an apocalyptic number.

It is an amenable number.

16529428589 is a deficient number, since it is larger than the sum of its proper divisors (2497135).

16529428589 is an equidigital number, since it uses as much as digits as its factorization.

16529428589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497134.

The product of its digits is 12441600, while the sum is 59.

The spelling of 16529428589 in words is "sixteen billion, five hundred twenty-nine million, four hundred twenty-eight thousand, five hundred eighty-nine".