27803030029 has 4 divisors (see below), whose sum is σ = 27848092284. Its totient is φ = 27757967776.

The previous prime is 27803029981. The next prime is 27803030051. The reversal of 27803030029 is 92003030872.

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 4016137129 + 23786892900 = 63373^2 + 154230^2 .

It is a cyclic number.

It is not a de Polignac number, because 27803030029 - 2¹³ = 27803021837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27803029976 and 27803030003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27803030089) 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, 22530202 + ... + 22531435.

It is an arithmetic number, because the mean of its divisors is an integer number (6962023071).

Almost surely, 2^27803030029 is an apocalyptic number.

It is an amenable number.

27803030029 is a deficient number, since it is larger than the sum of its proper divisors (45062255).

27803030029 is an equidigital number, since it uses as much as digits as its factorization.

27803030029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45062254.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 27803030029 in words is "twenty-seven billion, eight hundred three million, thirty thousand, twenty-nine".