29728049008589 has 4 divisors (see below), whose sum is σ = 29729833743324. Its totient is φ = 29726264273856.

The previous prime is 29728049008571. The next prime is 29728049008661. The reversal of 29728049008589 is 98580094082792.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16865461270564 + 12862587738025 = 4106758^2 + 3586445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29728049008589 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 (29728049028589) 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, 892342382 + ... + 892375695.

It is an arithmetic number, because the mean of its divisors is an integer number (7432458435831).

Almost surely, 2^{29728049008589} is an apocalyptic number.

It is an amenable number.

29728049008589 is a deficient number, since it is larger than the sum of its proper divisors (1784734735).

29728049008589 is a wasteful number, since it uses less digits than its factorization.

29728049008589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784734734.

The product of its (nonzero) digits is 209018880, while the sum is 71.

The spelling of 29728049008589 in words is "twenty-nine trillion, seven hundred twenty-eight billion, forty-nine million, eight thousand, five hundred eighty-nine".