27823313213 has 4 divisors (see below), whose sum is σ = 27824099520. Its totient is φ = 27822526908.

The previous prime is 27823313207. The next prime is 27823313239. The reversal of 27823313213 is 31231332872.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27823313213 - 2²⁶ = 27756204349 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 (27823313263) 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, 337445 + ... + 411722.

It is an arithmetic number, because the mean of its divisors is an integer number (6956024880).

Almost surely, 2^27823313213 is an apocalyptic number.

It is an amenable number.

27823313213 is a deficient number, since it is larger than the sum of its proper divisors (786307).

27823313213 is an equidigital number, since it uses as much as digits as its factorization.

27823313213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786306.

The product of its digits is 36288, while the sum is 35.

The spelling of 27823313213 in words is "twenty-seven billion, eight hundred twenty-three million, three hundred thirteen thousand, two hundred thirteen".